1 Then said he unto the disciples, It is impossible but that offences will come: but woe unto him, through whom they come! 2 It were better for him that a millstone were hanged about his neck, and he cast into the sea, than that he should offend one of these little ones. 3 Take heed to yourselves: If thy brother trespass against thee, rebuke him; and if he repent, forgive him. 4 And if he trespass against thee seven times in a day, and seven times in a day turn again to thee, saying, I repent; thou shalt forgive him. 5 And the apostles said unto the Lord, Increase our faith. 6 And the Lord said, If ye had faith as a grain of mustard seed, ye might say unto this sycamine tree, Be thou plucked up by the root, and be thou planted in the sea; and it should obey you. 7 But which of you, having a servant plowing or feeding cattle, will say unto him by and by, when he is come from the field, Go and sit down to meat? 8 And will not rather say unto him, Make ready wherewith I may sup, and gird thyself, and serve me, till I have eaten and drunken; and afterward thou shalt eat and drink? 9 Doth he thank that servant because he did the things that were commanded him? I trow not. 10 So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do. 11 And it came to pass, as he went to Jerusalem, that he passed through the midst of Samaria and Galilee. 12 And as he entered into a certain village, there met him ten men that were lepers, which stood afar off: 13 And they lifted up their voices, and said, Jesus, Master, have mercy on us. 14 And when he saw them, he said unto them, Go shew yourselves unto the priests. And it came to pass, that, as they went, they were cleansed. 15 And one of them, when he saw that he was healed, turned back, and with a loud voice glorified God, 16 And fell down on his face at his feet, giving him thanks: and he was a Samaritan. 17 And Jesus answering said, Were there not ten cleansed? but where are the nine? 18 There are not found that returned to give glory to God, save this stranger. 19 And he said unto him, Arise, go thy way: thy faith hath made thee whole. 20 And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation: 21 Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you. 22 And he said unto the disciples, The days will come, when ye shall desire to see one of the days of the Son of man, and ye shall not see it. 23 And they shall say to you, See here; or, see there: go not after them, nor follow them. 24 For as the lightning, that lighteneth out of the one part under heaven, shineth unto the other part under heaven; so shall also the Son of man be in his day. 25 But first must he suffer many things, and be rejected of this generation. 26 And as it was in the days of Noe, so shall it be also in the days of the Son of man. 27 They did eat, they drank, they married wives, they were given in marriage, until the day that Noe entered into the ark, and the flood came, and destroyed them all. 28 Likewise also as it was in the days of Lot; they did eat, they drank, they bought, they sold, they planted, they builded; 29 But the same day that Lot went out of Sodom it rained fire and brimstone from heaven, and destroyed them all. 30 Even thus shall it be in the day when the Son of man is revealed. 31 In that day, he which shall be upon the housetop, and his stuff in the house, let him not come down to take it away: and he that is in the field, let him likewise not return back. 32 Remember Lot's wife. 33 Whosoever shall seek to save his life shall lose it; and whosoever shall lose his life shall preserve it. 34 I tell you, in that night there shall be two men in one bed; the one shall be taken, and the other shall be left. 35 Two women shall be grinding together; the one shall be taken, and the other left. 36 Two men shall be in the field; the one shall be taken, and the other left. 37 And they answered and said unto him, Where, Lord? And he said unto them, Wheresoever the body is, thither will the eagles be gathered together.
[AD 220] Tertullian on Luke 17:1
Then, turning to His disciples, He says: "Woe unto him through whom offences come! It were better for him if he had not been born, or if a millstone were hanged about his neck and he were cast into the sea, than that he should offend one of these little ones," that is, one of His disciples.

[AD 400] Pseudo-Clement on Luke 17:1
Be not, my brethren, distressed by those things that have been done, but give heed to the future: for what is passed is ended; but the things which threaten are dangerous to those who shall fall in with them. For offenses shall never be wanting in this world, so long as the enemy is permitted to act according to his will; in order that the prudent and those who understood his wiles may be conquerors in the contests which he raises against them; but that those who neglect to learn the things that pertain to the salvation of their souls, may be taken by him with merited deceptions.

[AD 400] Pseudo-Clement on Luke 17:1
Then Peter answered, "The prophet of the truth has said, 'Good things must needs come, and blessed, said he, is he by whom they come; in like manner evil things must needs come, but woe to him through whom they come.' But if evil things come by means of evil men, and good things are brought by good men, it must needs be in each man as his own to be either good or bad, and proceeding from what he has proposed, in order to the coming of the subsequent good or evil, which, being of his own choice, are not arranged by the providence of God to come from him.

[AD 407] John Chrysostom on Luke 17:1-2
But by the punishment of the man who offends, learn the reward of him who saves. For had not the salvation of one soul been of such exceeding care to Christ, He would not threaten with such a punishment the offender.

[AD 420] Jerome on Luke 17:1-2
“It is impossible,” he says, “that scandals should not come.” I suppose that a scandal is a sin because sin comes through scandal. “In many things we all offend.” Granted that I have not come to ruin, but I have certainly offended not only in one thing but also in many things.

[AD 444] Cyril of Alexandria on Luke 17:1-2
Now there are two kinds of offences, of which the one resist the glory of God, but the other serve only to cause a stumbling-block to the brethren. For the inventions of heresies, and every word that is spoken against the truth, are obstructions to the glory of God. Such offences however do not seem to be mentioned here, but rather those which occur between friends and brethren, as strifes, slanders, and the like. Therefore He adds afterwards, If thy brother trespass against thee, rebuke him.

[AD 444] Cyril of Alexandria on Luke 17:1-2
The accompanying discussion that immediately follows these opening remarks and speaks of our pardoning our brothers and sisters in case they ever sin against us leads us to the idea that these were the offenses meant. What are these offenses? They are, I suppose, mean and annoying actions, fits of anger whether on good grounds or without justification, insults, slander, and other stumbling blocks similar to these. He says that these temptations must come. Is this then because God, who governs all, forces people to their commission of sin? Away with the thought! Nothing that is evil comes from him. He is the fountain of all virtue. Why then must this happen? They clearly happen because of our infirmity, for all of us stumble in many things, as it is written. Nevertheless he says that there will be woe to the person who lays the stumbling blocks in the way. He does not leave indifference in these things without rebuke but restrains it by fear of punishment. He still commands us to bear with patience those who cause sins to happen.

[AD 444] Cyril of Alexandria on Luke 17:1
Now there are two kinds of offenses, of which the one resist the glory of God, but the other serve only to cause a stumbling-block to the brethren. For the inventions of heresies, and every word that is spoken against the truth, are obstructions to the glory of God. Such offenses however do not seem to be mentioned here, but rather those which occur between friends and brethren, as strifes, slanders, and the like. Therefore He adds afterwards, If your brother trespass against you, rebuke him.
[AD 450] Peter Chrysologus on Luke 17:1-2
Hear the Lord saying, “Woe to the world because of scandals!” A scandal tempts the saints, fatigues the cautious, throws down the incautious, disturbs all things and confuses all people. It is true that in this present passage the Lord is talking about the scandal of his passion.

[AD 735] Bede on Luke 17:1-2
This is spoken according to the custom of the province of Palestine; for among the ancient Jews the punishment of those who were guilty of the greater crimes was that they should be sunk into the deep with a stone tied to them; and in truth it were better for a guilty man to finish his bodily life by a punishment however barbarous, yet temporal, than for his innocent brother to deserve the eternal death of his soul. Now he who can be offended is rightly called a little one; for he who is great, whatsoever he is witness of, and how great soever his sufferings, swerves not from the faith. As far then as we can without sin, we ought to avoid giving offence to our neighbours. But if an offence is taken at the truth, it is better to let the offence be, than that truth should be abandoned.

[AD 735] Bede on Luke 17:1
And he said to his disciples: It is impossible that scandals should not come, but woe to him through whom they come. The Apostle also says: There must be heresies, that those who are approved may be made manifest among you. It is therefore impossible in this world, so full of errors and afflictions, that scandals will not come very often; but woe to him who, by his fault, causes what is inevitable to come through him. Although some false brother or Judas himself, who was preparing his mind for betrayal, may be understood here by the general sense, this passage yet looks back to the previous context, where the Lord, speaking about giving alms, is mocked by the Pharisees. For he who reproaches one speaking rightly certainly provides a scandal, that is, a stumbling block and ruin to weak listeners, especially if he, like the Pharisees, appears to possess knowledge of the law. Rebuking whom, the Apostle says: And the weak brother perishes by your knowledge, for whom Christ died (I Cor. VIII).

[AD 1107] Theophylact of Ohrid on Luke 17:1-2
Because the Pharisees were covetous and railed against Christ when He preached poverty, He put to them the parable of the rich man and Lazarus. Afterwards, in speaking with His disciples concerning the Pharisees, He declares them to be men who caused division, and placed obstacles in the divine way. As it follows; Then said he unto his disciples, It is impossible but that offences will come, that is, hindrances to a good life and which is pleasing to God.

Or, He says that there must arise many obstacles to preaching and to the truth, as the Pharisees hindered the preaching of Christ. But some ask, If it needs be that offences should come, why does our Lord rebuke the author of the offences? for it follows, But woe to him through whom they come. For whatsoever necessity engenders is pardonable, or deserving of pardon. But observe, that necessity itself derives its birth from free-will. For our Lord, seeing how men cling to evil, and put forward nothing good, spoke with reference to the consequence of those things which are seen, that offences must needs come; just as if a physician, seeing a man using an unwholesome diet, should say, It is impossible but that such a one should be sick. And therefore to him that causes offences He denounces woe, and threatens punishment, saying, It were better for him that a mill-stone were hanged about his neck, and he cast into the sea, &c.

[AD 735] Bede on Luke 17:2
It is better for him that a millstone be placed around his neck and he be cast into the sea, than that he should cause one of these little ones to stumble. He speaks according to the custom of the province, by which this punishment was for greater crimes among the ancient Jews, that they be drowned with a stone tied to them in the depths. And indeed it is better for the innocent to end their bodily life with a punishment, however atrocious, than to deserve the eternal death of the soul by harming a brother. Rightly, however, one who can be scandalized is called little. For he who is great, whatever he sees, whatever he suffers, does not turn away from the faith. But he who is small in spirit and little, seeks opportunities to be scandalized. Therefore, it is most appropriate for us to consider those who are small in faith, that they not be offended by anything of ours, and leave the faith, and fall from salvation. It is indeed to be noted that in our good work sometimes we must avoid scandalizing our neighbor, but at other times, it must be contemptuously disregarded. Insofar as we can without sin, we must avoid scandalizing our neighbors. But if a scandal arises from the truth, it is better to permit the scandal to arise than to forsake the truth.

[AD 215] Clement of Alexandria on Luke 17:3
If he sin against thee seven times in a day, and turn to thee the seventh time, and say, I repent, forgive him."

[AD 220] Tertullian on Luke 17:3
Such identity of care proceeds from one and the same Being. A trespassing brother He will have rebuked. If one failed in this duty of reproof, he in fact sinned, either because out of hatred he wished his brother to continue in sin, or else spared him from mistaken friendship, although possessing the injunction in Leviticus: "Thou shalt not hate thy brother in thine heart; thy neighbor thou shalt seriously rebuke, and on his account shalt not contract sin.

[AD 397] Ambrose of Milan on Luke 17:3-4
After the parable of the rich man who is tormented in punishment, Christ added a commandment to give forgiveness to those who turn themselves from their trespasses, lest any one through despair should not be reclaimed from his fault; and hence it is said, Take heed to yourselves.

That there might neither be hard-wrung pardon, nor a too easy forgiveness, neither a harsh upbraiding, to dishearten, nor an overlooking of faults, to invite to sin; therefore it is said in another place, Tell him his fault between him and thee alone. (Mat. 18:15.) For better is a friendly correction, than a quarrelsome accusation. The one strikes shame into a man, the other moves his indignation. He who is admonished will more likely be saved, because he fears to be destroyed. For it is well that he who is corrected should believe you to be rather his friend than his enemy. For we more readily give ear to counsel than yield to injury. Fear is a weak preserver of consistency, but shame is an excellent master of duty. For he who fears is restrained, not amended. But He has well said, If he trespass against thee. For it is not the same thing to sin against God and to sin against man.

Or this number is used because God rested on the seventh day from His works. After the seventh day of the world everlasting rest is promised us, that as the evil works of that world shall then cease, so also may the sharpness of punishment be abated.

[AD 397] Ambrose of Milan on Luke 17:3-4
“If your brother sins against you, reprove him.” After the parable of the rich man who was tortured in punishment, how fittingly he added the command of showing mercy to those indeed who repent of their error, for fear that despair might not recall someone from guilt! He is truly moderate, so that pardon is not difficult or leniency lax, fearing that harsh reproof might cast someone down or conspiracy might invite guilt!… He fittingly said, “If your brother sins against you,” for it is not an equal condition to sin against people and against God. The apostle, who is a true interpreter of the divine prophecy, says, “After the first admonition, avoid a person that is a heretic,” because unbelief is not on a par with minor transgression. Since error very often surprises someone through ignorance, he commands that it should be rebuked, so that stubbornness is shunned and a mistake is corrected.

[AD 407] John Chrysostom on Luke 17:3-4
But by the punishment of the man who offends, learn the reward of him who saves. For had not the salvation of one soul been of such exceeding care to Christ, He would not threaten with such a punishment the offender.

[AD 444] Cyril of Alexandria on Luke 17:3-4
He says, “If he who sins against you repents and acknowledges his fault, you shall forgive him not only once, but very many times.” We … must rather imitate those whose business it is to heal our bodily diseases and who do not care for a sick person once only or twice, but just as often as he happens to become ill. Let us remember that we also are liable to infirmities and overpowered by our passions. This being the case, we pray that those who have the duty to rebuke us and who have the authority to punish us may show themselves forgiving and kind to us. It is our duty, having a common feeling for our mutual infirmities, to bear one another’s burdens, so we will fulfill the law of Christ. Observe also that in the Gospel according to Matthew, Peter makes the inquiry, “How often will my brother sin against me, and I forgive him?” The Lord then tells the apostles, “Although he sins seven times in the day,” that is, frequently, “and will acknowledge his fault, you shall forgive him.”

[AD 735] Bede on Luke 17:3
Take heed to yourselves. If your brother sins, rebuke him, and if he repents, forgive him. We read something similar in Leviticus: You shall not hate your brother in your heart; you shall surely rebuke your neighbor and not bear sin because of him (Lev. 19). He therefore shows the order in which we can avoid scandals and escape eternal woe: if we take care not to offend anyone, if we rebuke the sinner with the zeal of justice, if we open the bowels of mercy and compassion to the penitent. Here it must be carefully noted that we are commanded not to forgive indiscriminately but to forgive the one who repents. And first, indeed, to rebuke the sinner with mercy, so that we may justly have someone to forgive afterwards. Therefore, whoever sees his brother sin and remains silent is no less a transgressor of the Lord's command than he who refuses to grant pardon to the penitent. For he who said, If he repents, forgive, preceded it with, If he sins, rebuke. Therefore, mercy on a brother is to be granted after rebuke, but certainly to the one who turns away from error by repenting, lest forgiveness be either too difficult or indulgence too lax.

[AD 735] Bede on Luke 17:3-4
But we must mark, that He does not bid us forgive every one who sins, but him only who repents of his sins. For by taking this course we may avoid offences, hurting no one, correcting the sinner with a righteous zeal, extending the bowels of mercy to the penitent.

By using the number seven He assigns no bound to the giving of pardon, but commands us either to forgive all sins, or always to forgive the penitent. For by seven the whole of any thing or time is frequently represented.

[AD 1107] Theophylact of Ohrid on Luke 17:3-4
As if He says, Offences must needs come; but it does not follow that you must perish, if only you be on your guard: as it need not that the sheep should perish when the wolf comes, if the shepherd is watching. And since there are great varieties of offenders, (for some are incurable, some are curable,) He therefore adds, If thy brother trespass against thee, rebuke him.

But some one may well ask, If when I have several times forgiven my brother he again trespass against me, what must I do with him? In answer therefore to this question He adds, And if he trespass against thee seven times in a day, and seven times in a day turn again to thee, saying, I repent; forgive him.

[AD 2020] Douglas Wilson on Luke 17:3-4
Forgiveness as a transaction is impossible until the offender seeks that forgiveness. Forgiveness as a readiness to conduct the transaction is possible now. You can’t give the present until it is requested, but you can have it wrapped and sitting by the door.

[AD 220] Tertullian on Luke 17:4
Nor is it to be wondered at, if He thus teaches who forbids your refusing to bring back even your brother's cattle, if you find them astray in the road; much more should you bring back your erring brother to himself. He commands you to forgive your brother, should he trespass against you even "seven times." But that surely, is a small matter; for with the Creator there is a larger grace, when He sets no limits to forgiveness, indefinitely charging you "not to bear any malice against your brother," and to give not merely to him who asks, but even to him who does not ask.

[AD 235] Hippolytus of Rome on Luke 17:4
But they assert that not only is there in favour of their doctrine, testimony to be drawn from the mysteries of the Assyrians, but also from those of the Phrygians concerning the happy nature-concealed, and yet at the same time disclosed-of things that have been, and are coming into existence, and moreover will be,-(a happy nature) which, (the Naassene) says, is the kingdom of heaven to be sought for within a man. And concerning this (nature) they hand down an explicit passage, occurring in the Gospel inscribed according to Thomas, expressing themselves thus: "He who seeks me, will find me in children from seven years old; for there concealed, I shall in the fourteenth age be made manifest." This, however, is not (the teaching) of Christ, but of Hippocrates, who uses these words: "A child of seven years is half of a father." And so it is that these (heretics), placing the originative nature of the universe in causative seed, (and) having ascertained the (aphorism) of Hippocrates, that a child of seven years old is half of a father, say that in fourteen years, according to Thomas, he is manifested. This, with them, is the ineffable and mystical Logos. They assert, then, that the Egyptians, who after the Phrygians, it is established, are of greater antiquity than all mankind, and who confessedly were the first to proclaim to all the rest of men the rites and orgies of, at the same time, all the gods, as well as the species and energies (of things), have the sacred and august, and for those who are not initiated, unspeakable mysteries of Isis. These, however, are not anything else than what by her of the seven dresses and sable robe was sought and snatched away, namely, the pudendum of Osiris. And they say that Osiris is water. But the seven-robed nature, encircled and arrayed with seven mantles of ethereal texture-for so they call the planetary stars, allegorizing and denominating them ethereal robes,-is as it were the changeable generation, and is exhibited as the creature transformed by the ineffable and unportrayable, and inconceivable and figureless one. And this, (the Naassene) says, is what is declared in Scripture, "The just will fall seven times, and rise again." For these falls, he says, are the changes of the stars, moved by Him who puts all things in motion.

[AD 735] Bede on Luke 17:4
And if he sins against you seven times in a day, and seven times in a day turns back to you, saying: I repent, forgive him. The number seven does not set a limit for granting forgiveness, but either commands that all sins should be forgiven, or that the one repenting should always be forgiven. For often the universality of any matter or time is indicated by the number seven. Hence it is sung in the psalm: Seven times a day I have praised you (Psalm 119), which means nothing other than His praise is always in my mouth (Psalm 34). For elsewhere too, when Peter asked how many times he should forgive a brother sinning against him, and he said up to seven times, the Lord replied: I do not say to you up to seven times, but up to seventy times seven (Matthew 18), that is, four hundred and ninety times. So you should forgive your brother sinning that many times in a day, as he could not sin that many times. Therefore, if a brother sins against you and repents, you have the power, indeed the necessity, to forgive him, so that the Father who is in heaven may also forgive you when you repent and ask for mercy. But if he, having been reprimanded, neglects to convert and to do penance, consider what the judgment of truth decrees about this. If your brother sins against you, go and correct him, and so on, up to where he says: If he refuses to listen even to the church, let him be to you as a Gentile and a tax collector. And deservedly so, because under the name of the faithful he performed the works of the unfaithful. Certainly, we are commanded to give forgiveness differently to a brother who asks for it and differently to an enemy who persecutes. To the former, so that, having received forgiveness for the sin by which he harmed us innocents, he may join us in communal charity; to the latter, that while he wishes evil upon us and, if possible, does it, we may always wish and do good to him as far as we can. For David could not extend the same measure of forgiveness to his persecutors, deprived of the remedy of penance and despite compassionately mourning for them, as Joseph kindly and recognizably extended to his brothers, corrected with salutary contrition.

[AD 202] Irenaeus on Luke 17:5
Also the answer which He gave to His disciples when they said, "Increase our faith; "
[AD 215] Clement of Alexandria on Luke 17:5
Whence, perceiving the greatness of its power, they asked "that faith might be added to them; "

[AD 397] Ambrose of Milan on Luke 17:5-6
Or this number is used because God rested on the seventh day from His works. After the seventh day of the world everlasting rest is promised us, that as the evil works of that world shall then cease, so also may the sharpness of punishment be abated.

Or this is said because faith keeps out the unclean spirit, especially since the nature of the tree falls in with this meaning. For the fruit of the mulberry is at first white in the blossom, and being formed from thence grows red, and blackens as it gets ripe. The devil also having by transgression fallen from the white flower of the angelic nature and the bright beams of his power, grows terrible in the black odour of sin.

[AD 407] John Chrysostom on Luke 17:5-6
(Hom. 57. in Matt.) He mentions the mustard seed, because, though small in size, it is mightier in power than all the others. He implies then that the least part of faith can do great things. But though the Apostles did not transplant the mulberry tree, do not thou accuse them; for our Lord said not, You shall transplant, but, You shall be able to transplant. But they did not, because there was no need, seeing that they did greater things. (Hom. 32 in 1 ad Cor. c. 13:2.). But some one will ask, How does Christ say, that it is the least part of faith which can transplant a mulberry tree or a mountain, whereas Paul says that it is all faith which moves mountains? We must then answer, that the Apostle imputes the moving of mountains to all faith, not as though only the whole of faith could do this, but because this seemed a great thing to carnal men on account of the vastness of the body.

The mulberry may be also compared to the devil, for as by the leaves of the mulberry tree certain worms are fed, so the devil, by the imaginations which proceed from him, is feeding for us a never dying worm; but this mulberry tree faith is able to pluck out of our souls, and plunge it into the deep.

[AD 430] Augustine of Hippo on Luke 17:5-6
(de Quæst. Ev. lib. 2. qu. 39.) We may indeed understand that they asked for the increase of that faith by which men believe in the things which they see not; but there is further signified a faith in things, whereby not with the words only, but the things themselves present, we believe. And this shall be, when the Wisdom of God, by whom all things were made, shall reveal Himself openly to His saints face to face.

[AD 430] Augustine of Hippo on Luke 17:5-6
A mustard seed looks small. Nothing is less noteworthy to the sight, but nothing is stronger to the taste. What does that signify but the very great fervor and inner strength of faith in the church?

[AD 444] Cyril of Alexandria on Luke 17:5-6
They ask, “Add faith to us.” They do not ask simply for faith, for perhaps you might imagine them to be without faith. They rather ask Christ for an addition to their faith and to be strengthened in faith. Faith partly depends on us and partly is the gift of the divine grace. The beginning of faith depends on us and our maintaining confidence and faith in God with all our power. The confirmation and strength necessary for this comes from the divine grace. For that reason, since all things are possible with God, the Lord says that all things are possible for him who believes. The power that comes to us through faith is of God. Knowing this, blessed Paul also says in the first epistle to the Corinthians, “For to one is given through the Spirit the word of wisdom, to another the word of knowledge according to the same Spirit, and to another faith in the same Spirit.” You see that he has placed faith also in the catalogue of spiritual graces. The disciples requested that they might receive this from the Savior, contributing also what was of themselves. By the descent upon them of the Holy Spirit, he granted it to them after the fulfillment of the dispensation. Before the resurrection, their faith was so feeble that they were liable even to the charge of being “little of faith.”

[AD 604] Gregory the Dialogist on Luke 17:5-6
(22. Mor. c. 21.) That is, that the faith which has already been received in its beginning, might go on increasing more and more unto perfection.

[AD 735] Bede on Luke 17:5
The apostles said to the Lord: Increase our faith. The Lord had said earlier: He who is faithful in a very little is also faithful in much. And if you have not been faithful in that which is another's, who will give you that which is your own? And so the apostles, who were already faithful in what is another's and in the very little, that is, in the contempt of earthly things, ask that faith be increased in what is their own and in what is greater. For no one becomes supreme suddenly, but in good conduct each one begins with little things, so that he may reach great things. For the beginnings of virtue are one thing, its progress another, its perfection yet another. Hence, earnestly seeking, they say to the Lord: Increase our faith.

[AD 735] Bede on Luke 17:5-6
Or our Lord here compares perfect faith to a grain of mustard seed, because it is lowly in appearance, but fervid in heart. But mystically by the mulberry tree, (whose fruit and branches are red with a blood-red colour,) is represented the Gospel of the cross, which, through the faith of the Apostles being uprooted by the word of preaching from the Jewish nation, in which it was kept as it were in the lineal stock, was removed and planted in the sea of the Gentiles.

[AD 1107] Theophylact of Ohrid on Luke 17:5-6
The disciples hearing our Lord discoursing of certain arduous duties, such as poverty, and avoiding offences, entreat Him to increase their faith, that so they might be able to follow poverty, (for nothing so prompts to a life of poverty as faith and hope in the Lord,) and through faith to guard against giving offences. Therefore it is said, And the Apostles said unto the Lord, Increase our faith.

But our Lord told them that they asked well, and that they ought to believe stedfastly, forasmuch as faith could do many things; and hence it follows, And the Lord said, If ye had faith as a grain of mustard seed, &c. Two mighty acts are here brought together in the same sentence; the transplanting of that which was rooted in the earth, and the planting thereof in the sea, (for what is ever planted in the waves?) by which two things He declares the power of faith.

[AD 215] Clement of Alexandria on Luke 17:6
Such were the apostles, in whose case it is said that "faith removed mountains and transplanted trees."

[AD 400] Pseudo-Clement on Luke 17:6
He is the true worshipper of God, who not only is himself free from passions, but also sets others free from them; though they be so heavy that they are like mountains, he removes them by means of the faith with which he believes in God. Yea, by faith he truly removes mountains with their trees, if it be necessary.

[AD 735] Bede on Luke 17:6
The Lord said: If you had faith as a grain of mustard seed, you would say to this mulberry tree: Be uprooted, and be transplanted into the sea, and it would obey you. He compares perfect faith to a grain of mustard seed, which is indeed humble to the face and fervent in the heart, seen as vile to those looking upon it everywhere and appearing to have no strength, but when pressed it shows what perfection it carries inside. It should also be noted that a grain of mustard serves very beneficially for the purgation of the head. For if you thoroughly grind it and sift it with tepid fatty honey, and gargle with it fasting under the warm sun or in the bath, it purges all harmful moisture from the head even if it is quite thick, and it prevents imminent weaknesses from arising. Thus indeed, faith tested by the pestle of temptations, sifted through the sieve of discernment from all the surface of light thoughts, and sweetened with the honey of perfect love, not only exhausts all vices from the heart, which is the head of our inner man, but it also prevents them from being able to gather in the future. And the mulberry tree to be uprooted and transplanted into the sea, or simply placed, can be understood because it evidently is a sign of consummate faith commanding the elements with a word, so that what was said of one thing in particular is believed to apply generally to all. Finally, the Lord says elsewhere when the fig tree withered by the word, and the disciples marveled: If you have faith and do not doubt, not only will you do what is done to the fig tree, but if you say to this mountain, be taken up and cast into the sea, it will happen (Matthew XXI). Or certainly by the mulberry tree, whose fruit and twigs redden with a bloody color and hence is called "rubus" in Latin, the Gospel of the cross is expressed, which through the faith of the apostles, having been uprooted from the Jewish people in whom it was held as in a stem of origin, was transplanted and planted into the sea of the Gentiles. The sense is also supported by the parables joined to this sentence, which deals with the ministers of the word. It is also helpful to note that mulberry leaves, when thrown on a serpent, bring death to it because the word of the cross, while bringing health to all, takes away all harmful things.

[AD 258] Cyprian on Luke 17:7
That no one should be uplifted in his labour. In Solomon, in Ecclesiasticus: "Extol not thyself in doing thy work." Also in the Gospel according to Luke: "Which of you, having a servant ploughing, or a shepherd, says to him when he cometh from the field, Pass forward and recline? But he says to him, Make ready somewhat that I may sup, and gird thyself, and minister to me, until I eat and drink; and afterwards thou shalt eat and drink? Does he thank that servant because he has done what was commanded him? So also ye, when ye shall have done that which is commanded you, say, We are unprofitable servants; we have done what we had to do."

[AD 397] Ambrose of Milan on Luke 17:7-10
For we know that no one sits down before he has first passed over. Moses indeed also passed over, that he might see a great sight. Since then thou not only sayest to thy servant, Sit down to meat, but requirest from him another service, so in this life the Lord does not put up with the performance of one work and labour, because as long as we live we ought always to work. Therefore it follows, And will not rather say, Make ready wherewith I may sup.

Boast not thyself then that thou hast been a good servant. Thou hast done what thou oughtest to have done. The sun obeys, the moon submits herself, the angels are subject; let us not then seek praise from ourselves. Therefore He adds in conclusion, So likewise ye, when ye have done all good things, say, We are unprofitable servants, we have done that which it was our duty to do.

[AD 397] Ambrose of Milan on Luke 17:7-10
You do not say to your servant, “Sit down,” but require more service from him and do not thank him. The Lord also does not allow only one work or labor for you, because so long as we live we must always work.Know that you are a servant overwhelmed by very much obedience. You must not set yourself first, because you are called a son of God. Grace must be acknowledged, but nature not overlooked. Do not boast of yourself if you have served well, as you should have done. The sun obeys, the moon complies, and the angels serve.… Let us not require praise from ourselves nor prevent the judgment of God and anticipate the sentence of the Judge but reserve it for its own time and Judge.

[AD 407] John Chrysostom on Luke 17:7-10
The mulberry may be also compared to the devil, for as by the leaves of the mulberry tree certain worms are fed, so the devil, by the imaginations which proceed from him, is feeding for us a never dying worm; but this mulberry tree faith is able to pluck out of our souls, and plunge it into the deep.

[AD 407] John Chrysostom on Luke 17:7-10
He said, “When you have done everything, say, ‘We are unprofitable servants,’ ” to warn them in his wish that they keep themselves at great distance from that destructive passion. Dearly beloved, see how the person with his mouth open for human glory and performing the works of virtue on that account has no benefit from it. Despite practicing every example of virtue, if he seems to give himself credit for it, he ends up empty-handed and bereaved of everything.

[AD 430] Augustine of Hippo on Luke 17:7-10
(de Quæst. Ev. l. 2. qu. 39.) Or else; To the many who understand not this faith in the truth already present, our Lord might seem not to have answered the petitions of His disciples. And there appears a difficulty in the connection here, unless we suppose He meant the change from faith to faith, from that faith, namely, by which we serve God, to that whereby we enjoy Him. For then will our faith be increased when we first believe the word preached, next the reality present. But that joyful contemplation possesseth perfect peace, which is given unto us in the everlasting kingdom of God. And that perfect peace is the reward of those righteous labours, which are performed in the administration of the Church. Be then the servant in the field ploughing, or feeding, that is, in this life either following his worldly business, or serving foolish men, as it were cattle, he must after his labours return home, that is, be united to the Church.

(de Quæst. Ev. ubi sup.) While His servants also are ministering, that is, preaching the Gospel, our Lord is eating and drinking the faith and confession of the Gentiles. It follows, And afterward thou shall eat and drink. As if He says, After that I have been delighted with the work of thy preaching, and refreshed myself with the choice food of thy compunction, then at length shalt thou go, and feast thyself everlastingly with the eternal banquet of wisdom.

[AD 444] Cyril of Alexandria on Luke 17:7-10
Our Lord teaches us that it is no more than the just and proper right of a master to require, as their bounden duty, subjection from servants, adding, Doth he thank that servant because he did the things that were commanded him? I trow not. Here then is the disease of pride cut away. Why boastest thou thyself? Dost thou know that if thou payest not thy debt, danger is at hand, but if thou payest, thou doest nothing thankworthy? As St. Paul says, For though I preach the Gospel I have nothing to glory of, for necessity is laid upon me, yea, woe is unto me if I preach not the Gospel. (1 Cor. 9:16.)
Observe then that they who have rule among us, do not thank their subjects, when they perform their appointed service, but by kindness gaining the affections of their people, breed in them a greater eagerness to serve them. So likewise God requires from us that we should wait upon Him as His servants, but because He is merciful, and of great goodness, He promises reward to them that work, and the greatness of His loving-kindness far exceeds the labours of His servants.

[AD 735] Bede on Luke 17:7
Which of you, having a servant plowing or tending sheep. This parable teaches that faith, the more excellent it is outwardly in virtues, should become all the more humble within in conscience. For a servant plowing or tending sheep is understood as any teacher of the Church. About whom the Lord said: No one who puts his hand to the plow and looks back is fit for the kingdom of God. And to another who testified his love for Him, He responded for the third time: Feed my sheep.

[AD 735] Bede on Luke 17:7
Who, when he returns from the field, would immediately say to him, "Come along, sit down," and would not say to him, "Prepare what I may eat"? The servant returns from the field when, after pausing from the work of preaching for a time, the teacher returns to his conscience, and, retreating from public speaking to the court of his heart, privately reviews his acts or words with himself. To whom the Lord does not immediately say, "Come along, sit down," that is, "pass from this mortal life, and be refreshed in the blessed abode of eternal life." For He will say this later, but in the meantime, after the shepherding and farming, He orders him to prepare what he may eat at home, that is, to display the labor of open speech, as well as the humility of self-reflection. For the Lord deigns to enter such a temple of conscience and desires to partake most willingly of such a meal. For behold, He says, I stand at the door and knock, if anyone hears my voice and opens the door, I will come in to him and dine with him, and he with me (Apoc. III).

[AD 735] Bede on Luke 17:7-10
Or the servant departs from the field when giving up for a time his work of preaching, the teacher retires into his own conscience, pondering his own words or deeds within himself. To whom our Lord does not at once say, Go from this mortal life, and sit down to meat, that is, refresh thyself in the everlasting resting-place of a blessed life.

He bids make ready wherewith he may sup, that is, after the labours of public discourse, He bids him humble himself in self-examination. With such a supper our Lord desires to be fed. But to gird one's self is to collect the mind which has been enfolded in the base coil of fluctuating thoughts, whereby its steps in the cause of good works are wont to be entangled. For he who girds up his garments does so, that in walking he may not be tripped up. But to minister unto God, is to acknowledge that we have no strength without the help of His grace.

Servants, I say, because bought with a price; (1 Cor. 6:20) unprofitable, for the Lord needeth not our good things, (Ps. 16:2) or because the sufferings of this present time are not worthy to be compared to the glory which shall be revealed in us. (Rom. 8:18.) Herein then is the perfect faith of men, when having done all things which were commanded them, they acknowledge themselves to be imperfect.

[AD 1107] Theophylact of Ohrid on Luke 17:7-10
Because faith makes its possessor a keeper of God's commandments, and adorns him with wonderful works; it would seem from thence that a man might thereby fall into the sin of pride. Our Lord therefore forewarned His Apostles by a fit example, not to boast themselves in their virtues, saying, But which of you having a servant plowing, &c.

[AD 735] Bede on Luke 17:8
And gird yourself and serve me while I eat and drink. To gird oneself is to restrict one's humble mind from all wandering thoughts by which the steps of duties are usually impeded. For whoever girds their clothes does this to avoid being entangled to the point of stumbling while walking. To serve God is to confess that one is insignificant in everything and has no strength without His grace. For a minister takes his name from a lower status, that is, subjection, just as a master takes his name from a higher status. Therefore, he serves the Creator who, considering his nature, fearing His judgements, humbles himself regarding his own virtues.

[AD 735] Bede on Luke 17:8
And after this, you will eat and drink. After, he says, I have been delighted by the work of your preaching, and refreshed by the feasts of your compunction, then finally you will pass and recline, and you will be refreshed forever with the eternal feasts of my wisdom.

[AD 735] Bede on Luke 17:9
Does he give thanks to that servant because he did what was commanded of him? I think not. So also you, when you have done all things that are commanded you, say: We are unprofitable servants. If a man, he says, demands not uniform but multiple service from a human servant, and yet does not give him thanks, how much more you, who can do nothing without me? You ought not to measure the merits of labors by the length of time, but by love and voluntary service, always increasing the former by new endeavors. Therefore say: We are unprofitable servants. Indeed, servants, because you were bought at a price. Truly unprofitable, because the Lord does not need your goods. If, however, he is unprofitable who has done all things, what is to be said about him who either could not accomplish what was commanded due to weakness, or, what is worse, despised it out of pride? Otherwise: We are unprofitable servants, because the sufferings of this present time are not worthy to be compared with the glory that shall be revealed in us (Romans 8). And elsewhere: Who crowns me with mercy and compassion (Psalm 103). He does not say with merits and works, because by whose mercy we are prevented, that we may humbly serve God, by his gift we are crowned, that we may reign loftily with him.

[AD 108] Ignatius of Antioch on Luke 17:10
And again, "When ye shall have done all things that are commanded you, say, We are unprofitable servants; "
[AD 258] Cyprian on Luke 17:10
But some who are of the lapsed have lately written to me, and are humble and meek and trembling and fearing God, and who have always laboured in the Church gloriously and liberally, and who have never made a boast of their labour to the Lord, knowing that He has said, "When ye shall have done all these things, say, We are unprofitable servants: we have done that which was our duty to do." Thinking of which things, and although they had received certificates from the martyrs, nevertheless, that their satisfaction might be admitted by the Lord, these persons beseeching have written to me that they acknowledge their sin, and are truly repentant, and do not hurry rashly or importunately to secure peace; but that they are waiting for my presence, saying that even peace itself, if they should receive it when I was present, would be sweeter to them. How greatly I congratulate these, the Lord is my witness, who hath condescended to tell what such, and such sort of servants deserve of His kindness. Which letters, as I lately received, and now read that yon have written very differently, I beg that you will discriminate between your wishes; and whoever you are who have sent this letter, add your names to the certificate, and transmit the certificate to me with your several names. For I must first know to whom I have to reply; then I will respond to each of the matters that you have written, having regard to the mediocrity of my place and conduct. I bid you, beloved brethren, ever heartily farewell, and live quietly and tranquilly according to the Lord's discipline.

[AD 735] Bede on Luke 17:10
What we ought to have done, we have done. Indeed we ought to have, because he who did not come to be served, but to serve (Matt. 20), made us debtors to himself, so that, evidently not trusting in our own works, but always fearing his judgment, we may say with the prophet: What shall we render to the Lord for all that he has rendered to us? (Psalm 115). In order to show that he had faith like a mustard seed, humble and fervent, he prefaced, saying: I believed, therefore I have spoken, but I was greatly humbled (Psalm 116). To show that he did not trust in his own strength, he added, speaking in ecstasy: Every man is a liar (Psalm 116), to signify himself as an unworthy servant even after receiving the precious chalice of death, he exclaimed: O Lord, I am your servant, I am your servant, and the son of your handmaid, you have loosed my bonds (Psalm 116). He did not say, I have loosed them myself, I am sufficient to save myself, but You have loosed my bonds, I will offer to you the sacrifice of thanksgiving (Psalm 116). This then is the only perfection of faith in men, if, having fulfilled everything that has been commanded, they know themselves to be imperfect, and as long as they wander away from the Lord, always acknowledge the evils in themselves to lament, always remember the good that is missing that, with his grace aiding, they may progress.

[AD 220] Tertullian on Luke 17:11
Marcion's labour, however, is to object to us the strictness of the law, with the view of maintaining that here also Christ is its enemy-forestalling its enactments even in His cure of the ten lepers. These He simply commanded to show themselves to the priest; "and as they went, He cleansed them" -without a touch, and without a word, by His silent power and simple will.

[AD 373] Athanasius of Alexandria on Luke 17:11-19
Today, the Lord rebukes those who keep the Passover the way the Jews did, just as he rebuked certain lepers he had cleansed. You recall that he loved the one who was thankful, but he was angry with the ungrateful ones, because they did not acknowledge their Deliverer. They thought more highly of their cure from leprosy than of him who had healed them.… Actually, this one was given much more than the rest. Besides being healed of his leprosy, he was told by the Lord, “Stand up and go on your way. Your faith has saved you.”You see, those who give thanks and those who glorify have the same kind of feelings. They bless their helper for the benefits they have received. That is why Paul urged everybody to “glorify God with your body.” Isaiah also commanded, “Give glory to God.”

[AD 378] Titus of Bostra on Luke 17:11
They associated together from the sympathy they felt as partakers of the same calamity, and were waiting till Jesus passed, anxiously looking out to see Him approach. As itis said, Which stood afar off, for the Jewish law esteems leprosy unclean, whereas the law of the Gospel calls unclean not the outward, but the inward leprosy.
They pronounce the name of Jesus, and gain to the mselves the reality. For Jesus is by interpretation Savior. They say, Have mercy upon us, because they were sensible of His power, and sought neither for gold and silver, but that their bodies might put on again a healthful appearance.
When he found that he was cleansed, he had boldness to draw near, as it follows, And fell down on his face at his feet giving him thanks. Thus by his prostration and prayers shelving at once both his faith and his gratitude.
Wherein it is shown, that strangers were more ready to receive the faith, but Israel was slow to believe; and so it follows, And he said to him, Arise, go your way, your faith has made you whole.
[AD 378] Titus of Bostra on Luke 17:11-19
saying, And it came to pass, showing that the Samaritans were indeed well disposed towards the mercies above mentioned, but the Jews not so. For there was enmity between the Jews and the Samaritans, and He to allay this, passed into the midst of both nations, that he might cement both into one new man.

They associated together from the sympathy they felt as partakers of the same calamity, and were waiting till Jesus passed, anxiously looking out to see Him approach. As it is said, Which stood afar off, for the Jewish law esteems leprosy unclean, whereas the law of the Gospel calls unclean not the outward, but the inward leprosy.

They pronounce the name of Jesus, and gain to themselves the reality. For Jesus is by interpretation Saviour. They say, Have mercy upon us, because they were sensible of His power, and sought neither for gold and silver, but that their bodies might put on again a healthful appearance.

When he found that he was cleansed, he had boldness to draw near, as it follows, And fell down on his face at his feet giving him thanks. Thus by his prostration and prayers showing at once both his faith and his gratitude.
It follows, And he was a Samaritan.

Wherein it is shown, that strangers were more ready to receive the faith, but Israel was slow to believe; and so it follows, And he said unto him, Arise, go thy way, thy faith has made thee whole.

[AD 397] Ambrose of Milan on Luke 17:11-19
After speaking the foregoing parable, our Lord censures the ungrateful;

[AD 430] Augustine of Hippo on Luke 17:11-19
(de Quæst. Ev. l. ii. qu. 40.) The lepers may be taken mystically for those who, having no knowledge of the true faith, profess various erroneous doctrines. For they do not conceal their ignorance, but blazen it forth as the highest wisdom, making a vain show of it with boasting words. But since leprosy is a blemish in colour, when true things appear clumsily mixed up with false in a single discourse or narration, as in the colour of a single body, they represent a leprosy streaking and disfiguring as it were with true and false dyes the colour of the human form. Now these lepers must be so put away from the Church, that being as far removed as possible, they may with loud shouts call upon Christ. But by their calling Him Teacher, I think it is plainly implied that leprosy is truly the false doctrine which the good teacher may wash away. Now we find that of those upon whom our Lord bestowed bodily mercies, not one did He send to the priests, save the lepers, for the Jewish priesthood was a figure of that priesthood which is in the Church. All vices our Lord corrects and heals by His own power working inwardly in the conscience, but the teaching of infusion by means of the Sacrament, or of catechizing by word of mouth, was assigned to the Church. And as they went, they were cleansed; just as the Gentiles to whom Peter came, having not yet received the sacrament of Baptism, whereby we come spiritually to the priests, are declared cleansed by the infusion of the Holy Spirit. Whoever then follows true and sound doctrine in the fellowship of the Church, proclaiming himself to be free from the confusion of lies, as it were a leprosy, yet still ungrateful to his Cleanser does not prostrate himself with pious humility of thanksgiving, is like to those of whom the Apostle says, that when they knew God, they glorified him not as God, nor were thankful. (Rom. 1:21.) Such then will remain in the ninth number as imperfect. For the nine need one, that by a certain form of unity they may be cemented together, in order to become ten. But he who gave thanks was approved of as a type of the one only Church. And since these were Jews, they are declared to have lost through pride the kingdom of heaven, wherein most of all unity is preserved. But the man who was a Samaritan, which is by interpretation "guardian," giving back to Him who gave it that which he had received, according to the Psalm, My strength will I preserve for thee, (Ps. 59:9.) has kept the unity of the kingdom with humble devotion.

[AD 444] Cyril of Alexandria on Luke 17:11
The Savior next manifests His glory by drawing over Israel to the faith. As it follows, And as he entered into a certain village, there met him ten men that were lepers, men who were banished from the towns and cities, and counted unclean, according to the rites of the Mosaic law.
The law also ordered, that those who were cleansed from leprosy should offer sacrifice for the sake of their purification.
Whereby the Jewish priests who were jealous of His glory might know that it was by Christ granting them health that they were suddenly and miraculously healed.
[AD 444] Cyril of Alexandria on Luke 17:11-19
The Saviour next manifests His glory by drawing over Israel to the faith. As it follows, And as he entered into a certain village, there met him ten men that were lepers, men who were banished from the towns and cities, and counted unclean, according to the rites of the Mosaic law.

The law also ordered, that those who were cleansed from leprosy should offer sacrifice for the sake of their purification.

Whereby the Jewish priests who were jealous of His glory might know that it was by Christ granting them health that they were suddenly and miraculously healed.

[AD 444] Cyril of Alexandria on Luke 17:11-19
Why did he not say, “I will, be cleansed,” as he did in the case of another leper, instead of commanding them to show themselves to the priests? It was because the law gave directions to this effect to those who were delivered from leprosy. It commanded them to show themselves to the priests and to offer a sacrifice for their cleansing. He commanded them to go as being already healed so that they might bear witness to the priests, the rulers of the Jews and always envious of his glory. They testified that wonderfully and beyond their hope, they had been delivered from their misfortune by Christ’s willing that they should be healed. He did not heal them first but sent them to the priests, because the priests knew the marks of leprosy and of its healing.

[AD 444] Cyril of Alexandria on Luke 17:11-19
Falling into a thankless forgetfulness, the nine lepers that were Jews did not return to give glory to God. By this, he shows that Israel was hard of heart and utterly unthankful. The stranger, a Samaritan, was of foreign race brought from Assyria. The phrase “in the middle of Samaria and Galilee” has meaning. “He returned with a loud voice to glorify God.” It shows that the Samaritans were grateful but that the Jews, even when they benefited, were ungrateful.

[AD 735] Bede on Luke 17:11-19
He fell upon his face, because he blushes with shame when he remembers the evils he had committed. And he is commanded to rise and walk, because he who, knowing his own weakness, lies lowly on the ground, is led to advance by the consolation of the divine word to mighty deeds. But if faith made him whole, who hurried himself back to give thanks, therefore does unbelief destroy those who have neglected to give glory to God for mercies received. Wherefore that we ought to increase our faith by humility, as it is declared in the former parable, so in this is it exemplified in the actions themselves.

[AD 1107] Theophylact of Ohrid on Luke 17:11-19
They therefore stand afar off as if ashamed of the uncleanness which was imputed to them, thinking that Christ would loathe them as others did. Thus they stood afar off, but were made nigh unto Him by their prayers. For the Lord is nigh unto all them that call upon him in truth. (Ps. 145:18.) Therefore it follows, And they lifted up their voices, and said, Jesus, Master, have mercy upon us.

They do not merely supplicate or entreat Him as if He were a man, but they call Him Master or Lord, as if almost they looked upon Him as God. But He bids them show themselves to the priests, as it follows, And when he saw them, he said, Go, show yourselves unto the priests. For they were examined whether they were cleansed from their leprosy or not.

Therefore in bidding them go to the priests, he meant nothing more than that they were just about to be healed; and so it follows, And it came to pass that as they went they were healed.

But out of the ten, the nine Israelites were ungrateful, whereas the Samaritan stranger returned and lifted up his voice in thanksgiving, as it follows, And one of them turned back, and with a loud voice glorified God.

We may gather from this that a man is not one whit hindered from pleasing God because he comes from a cursed race, only let him bear in his heart an honest purpose. Further, let not him that is born of saints boast himself, for the nine who were Israelites were ungrateful; and hence it follows, And Jesus answering him said, Were there not ten cleansed?

[AD 735] Bede on Luke 17:12
And it came to be, etc., ten leprous men met him. Leprous men can not unreasonably be understood as those who, not having the knowledge of true faith, profess various doctrines of error. For they do not hide their ignorance, but present it as supreme expertise to the light and display the boasting of their speech. And indeed there is no false doctrine which does not mix some truths among the false things. Hence true things mixed irregularly with false ones, appearing in one argument or narration of a man, as in the color of one body, signify leprosy, diversifying and staining human bodies with places of true and false colors. These therefore are to be avoided by the Church, so that if possible, being far removed, they may invoke Christ with a loud voice. Wherefore it is aptly added:

[AD 1107] Theophylact of Ohrid on Luke 17:12
From this one may learn that nothing prevents a man from living in a manner pleasing to God, not even if he belongs to a despised race, if only he has a good will and disposition. For behold, ten lepers met Jesus as He was about to enter a certain city. They met Him outside the city, for those who were considered unclean were not permitted to go into the city. They stood afar off, as if ashamed of their supposed uncleanness, and did not dare to draw near, thinking that Jesus abhorred them as did the others. They lifted up their voices and made supplication. By physical location they were standing afar off, but in their supplication they were near. For the Lord is nigh unto all that call upon Him in truth (Ps. 144:19). And they did not make supplication to Him as to a mere man, but as to One greater than a man. For they called Him Master, meaning Lord, Protector, and Guardian, which is not far from thinking of Him as God.
The Lord instructs them to show themselves to the priests. Initially the priests would examine men such as these to determine whether they were lepers or not. For there were certain signs by which the priests could recognize incurable leprosy. But in addition to this, if it should happen that someone who had been suffering from leprosy was healed, the priests would again examine him to verify the cure, in which event the gift commanded by the law would be offered (Lev. 14). In this case, since these men were already confirmed lepers, why should they show themselves to the priests, unless indeed they were about to be cleansed? To command them to go the priests indicated nothing less than that they would be healed. This is why the Evangelist says that as they went, they were cleansed. Of the ten lepers, the nine who were Israelites showed themselves to be ungrateful, while it was the Samaritan, an accursed foreigner, as we said earlier, who returned to voice his gratitude. The Samaritans were Assyrians; therefore, let no Gentile despair, and let no one descended from holy forebears boast. This miracle also signifies the common salvation that came to the whole human race. For the ten lepers represent all of human nature—it was leprous with wickedness, carrying about with it the ugliness of sin, passing its life outside the heavenly city on account of its uncleanness, and standing afar off from God. But this very distance from God is itself a supplication. For when the Lover of mankind, Who wills that all should be saved and receive good things, sees someone who is not sharing in His goodness, then He is most quick to show mercy and to heal those who are so miserably afflicted. But He also healed the whole leprous nature of man, when, for every mans sake, He took flesh and tasted of death. Although the Jews had been cleansed of the uncleanness of their leprous sin, as far as it was the Lords part to do, they showed themselves ungrateful and did not return from the path of their vain foolishness to give glory to God Who saved them, that is, to believe in Him Who is God and Who endured the extremes of suffering. For this is the glory of God: His Flesh and His Cross. These Jews, then, did not confess the incarnate and crucified Lord of glory. But the foreign and accursed people of the Gentiles recognized the One Who makes clean, and they glorified Him by believing in Him. They believed that God loves man so much and is so powerful that He accepted the very depth of dishonor for our sake—this is His love of man; and having accepted it, He suffered no harm to His own nature—this is His power.
[AD 735] Bede on Luke 17:13
Those who stood afar off, and lifted up their voice, saying: Jesus, Master, have mercy on us. And well, that they may be saved, they call Jesus Master. For indeed, in his words, they show they have erred, calling him the humble teacher of salvation, and when they return to the knowledge of the teacher, they immediately recur to the form of salvation. For it follows:

[AD 220] Tertullian on Luke 17:14
However, what was obviously required by the law He commanded should be done: "Go," said He, "show yourselves to the priests." Yet why this, if He meant to cleanse them first? Was it as a despiser of the law, in order to prove to them that, having been cured already on the road, the law was now nothing to them, nor even the priests? Well, the matter must of course pass as it best may, if anybody supposes that Christ had such views as these! But there are certainly better interpretations to be found of the passage, and more deserving of belief: how that they were cleansed on this account, because they were obedient, and went as the law required, when they were commanded to go to the priests; and it is not to be believed that persons who observed the law could have found a cure from a god that was destroying the law.

[AD 380] Apostolic Constitutions on Luke 17:14
And afterwards to the nine, "Go, show yourselves to the priests."

[AD 735] Bede on Luke 17:14
When he saw them, he said: Go, show yourselves to the priests. And it happened as they went, they were cleansed. The Lord is found to have sent none of those to whom he granted these corporal benefits to the priests, except lepers, because evidently, the priesthood of the Jews was a figure of the future royal priesthood, which is in the Church, whereby all belonging to the body of Christ, the highest and true Prince of priests, are consecrated. And whoever has lacked the grace of the Lord, either by heretical depravity, gentile superstition, Jewish perfidy, or even fraternal schism, must come to the Church and show the true color of faith they have received. But other vices, like the health and as it were the senses and limbs of the soul, the Lord heals and corrects within through conscience and understanding. Indeed, Paul also, having heard the voice of the Lord: Why do you persecute me? and, I am Jesus whom you are persecuting (Acts 9), was nevertheless sent to Ananias, so that through that priesthood established in the Church, he might receive the sacrament of the doctrine of faith, and be approved in its true color. Not because the Lord cannot do all things by himself (for who else does these things even in the Church?) but so that the very society of gathered faithful, by approving and communicating the doctrine of true faith among each other, might impart in all that is said in words or signified in sacraments, as it were, one form of true color. Cornelius also, although his alms and prayers were accepted and heard by the angel, is nevertheless commanded to send for Peter, for the unity of doctrine and sacraments, as if to him and his it was said: Go, show yourselves to the priests; for as they went, they were cleansed. For Peter had already come to them, but they had not yet received the sacrament of baptism, had not yet spiritually come to the priests, and yet by the infusion of the Holy Spirit and the wonder of tongues, their cleansing was declared.

[AD 220] Tertullian on Luke 17:15
Whence also, astonished that one only out of the ten was thankful for his release to the divine grace, He does not command him to offer a gift according to the law, because he had already paid his tribute of gratitude when "he glorified God; for thus did the Lord will that the law's requirement should be interpreted.

[AD 735] Bede on Luke 17:15
One of them, etc. This one, who returned glorifying God, signifies the devoted humility of the one Church to Christ. Who, well falling at the feet of the Lord, gave thanks. For he truly gives thanks to God, who, by repressing the thoughts of his own presumption, humbly sees how weak he is in himself, who attributes no virtue to himself, who acknowledges that the good deeds he performs come from the mercy of the Creator. Hence it is rightly added:

[AD 735] Bede on Luke 17:16
And he was a Samaritan. Indeed, Samaritan is interpreted as custodian. By this name, that people who, by giving thanks to Him from whom they received, attributes everything they received, is most aptly signified, in a manner singing from the Psalm: My strength I will guard for You, because You, O God, are my protector; my God, His mercy will precede me (Psalm LVIII). He falls moreover on his face, because he blushes from the evils he remembers having committed. For there man falls where he is ashamed. Hence also Paul, as if saying to some lying on their face, said: What fruit then did you have in those things of which you are now ashamed (Rom. VI)? On the other hand, concerning the rider of the horse, that is, about him who is lifted up in the glory of this world, it is said: His rider shall fall backward (Gen. XLIX). And again concerning the persecutors of the Lord it is written: They went backward and fell to the ground (John XVIII). What is this, that the chosen fall on their face and the reprobate fall backward, except that everyone who falls backward falls where he undoubtedly does not see; but he who falls forward falls where he sees? Therefore, the wicked, because they fall into things unseen, are said to fall backward, because they collapse where they cannot currently see what follows them. But the just, because they willingly cast themselves down in these visible things in order to be raised in the invisible, as if they fall on their face, because pierced by fear while seeing, they are humbled.

[AD 220] Tertullian on Luke 17:17
The miracle was performed in the district of Samaria, to which country also belonged one of the lepers. Samaria, however, had revolted from Israel, carrying with it the disaffected nine tribes, which, having been alienated by the prophet Ahijah, Jeroboam settled in Samaria.

[AD 735] Bede on Luke 17:17
But Jesus answered and said: Were there not ten cleansed? But where are the nine? If one is added to nine, a certain image of unity is completed. It results in such an embrace that the number does not advance further unless it returns again to one, so that this rule through the infinity of numbers is preserved. Therefore, the nine need one, so that they may be unified into a certain form of unity and become ten. But one does not need them to preserve unity. Therefore, as that one who gave thanks is approved and praised as a sign of the unique Church, so those nine who did not give thanks were made reprobate, excluded from the fellowship of unity. Hence, such will remain in the number of nine as imperfect. And rightly does the Savior inquire as if unknown, Where are they? For to know God is to choose; to not know is to reprobate.

[AD 735] Bede on Luke 17:18
There was no one found to return and give glory to God except this foreigner. According to the body, indeed, it is easy to see a man who does not have leprosy and yet is not of good spirit; but according to the significance of this miracle, it troubles the observer to consider how the world can be ungrateful. But now it is also easy to see that it may happen that anyone in the society of the Church acquires sound and true doctrine and argues everything according to the rule of the Catholic faith, distinguishes the creature from the Creator, and is thus revealed to have been free from the diversity of lies like leprosy, and yet is ungrateful to God and his purifying Lord, because, elevated by pride, he is not humbled by holy thanksgiving, and thus becomes like those of whom the Apostle says: Although they knew God, they did not glorify him as God or give thanks. For by saying they knew God, he shows they had been cleansed from leprosy, but nevertheless immediately accuses them of being ungrateful.

[AD 220] Tertullian on Luke 17:19
Then, at last, having conferred with the (primitive) authors, and having agreed with them touching the rule of faith, they joined their hands in fellowship, and divided their labours thenceforth in the office of preaching the gospel, so that they were to go to the Jews, and St. Paul to the Jews and the Gentiles.

[AD 220] Tertullian on Luke 17:19
And yet who was the God to whom the Samaritan gave thanks, because thus far not even had an Israelite heard of another god? Who else but He by whom all had hitherto been healed through Christ? And therefore it was said to him, "Thy faith hath made thee whole," because he had discovered that it was his duty to render the true oblation to Almighty God-even thanksgiving-in His true temple, and before His true High Priest Jesus Christ.

[AD 735] Bede on Luke 17:19
And he said to him: "Rise, go; your faith has made you well." He who devoutly fell before the Lord is commanded to rise and go, because he who, subtly recognizing his infirmity, humbly lies down, is ordered to rise through the consolation of the divine word to strong deeds, and with increasing merits daily to advance to more perfect things everywhere. But if faith made him well who bent down to give thanks to his Savior and cleanser, then disbelief destroyed those who neglected to give glory to God for received benefits. Therefore, this reading is linked with the previous one by that reason, that there it is determined through the given parable that faith ought to be increased by humility, but here it is more clearly shown by actual events, not only that faith recognized the rationale, but that the executed operation of faith is what makes the believer well and gives glory to the Father who is in heaven.

[AD 220] Tertullian on Luke 17:20
"The kingdom of God," He says, "cometh not with observation; neither do they say, Lo here! or, lo there! for, behold, the kingdom of God is within you." Now, who will not interpret the words "within you" to mean in your hand, within your power, if you hear, and do the commandment of God? If, however, the kingdom of God lies in His commandment, set before your mind Moses on the other side, according to our antitheses, and you will find the self-same view of the case.

[AD 395] Gregory of Nyssa on Luke 17:20-21
(lib. de prop. sec. Deum.) Or, perhaps, the kingdom of God being within us, means that joy that is implanted in our hearts by the Holy Spirit. For that is, as it were, the image and pledge of the everlasting joy with which in the world to come the souls of the Saints rejoice.

[AD 397] Ambrose of Milan on Luke 17:20-21
Asked by the disciples when the kingdom of God would come, the Lord said, “The kingdom of God is within you,” through the truth of grace and not through the slavery of guilt. Let those that would be free be servants in the Lord. As we share in service, we also share in the kingdom. He said, “The kingdom of God is within you.” He would not say when it would come. He said there would be a day of judgment, so that he instilled in all terror of the judgment to come, and he did not add the guarantee of its postponement.

[AD 435] John Cassian on Luke 17:20-21
If the devil has been driven out and sin no longer reigns, then the kingdom of God is established in us. As it is written in the Gospel, “The kingdom of God does not come with observation, nor will they say, ‘Lo here,’ or ‘Lo, there.’ Truly I say to you that the kingdom of God is within you.” The only thing that can be “within us” is knowledge or ignorance of the truth and the affection for righteousness or sin by which we prepare our hearts to be a kingdom of Christ or the devil. St. Paul described the nature of this kingdom in this way: “For the kingdom of God is not food and drink, but righteousness and peace and joy in the Holy Spirit.” If the kingdom of God is within us and is righteousness, peace and joy, then someone that remains in these is surely within the kingdom of God. Someone that remains in unrighteousness, conflict and the melancholy that kills the life of the spirit is already a citizen of the devil’s kingdom, of hell and of death. These are the signs whether it is God’s kingdom or the devil’s.

[AD 444] Cyril of Alexandria on Luke 17:20-21
Because our Saviour, in His discourses which He addressed to others, spake often of the kingdom of God, the Pharisees derided Him; hence it is said, And when he was asked by the Pharisees when the kingdom of God should come. As though they said tauntingly, "Before the kingdom of God come, which Thou speakest of, the death of the cross will be Thy lot." But our Lord testifying His patience, when reviled reviles not again, but the rather because they were evil, returns not a scornful answer; for it follows, He answered and said, The kingdom cometh not with observation; as if he says, "Seek not to know the time when the kingdom of heaven shall again be at hand. For that time can be observed neither by men nor angels, not as the time of the Incarnation which was proclaimed by the foretelling of Prophets and the heraldings of Angels." Wherefore He adds, Neither shall they say, Lo here! or, Lo there! Or else, They ask about the kingdom of God, because, as is said below, they thought that on our Lord's coming into Jerusalem, the kingdom of God would be immediately manifested. Therefore our Lord answers, that the kingdom of God will not come with observation.

Now it is only for the benefit of each individual that He says that which follows, For behold the kingdom of God is within you; that is, it rests with you and your own hearts to receive it. For every man who is justified by faith and the grace of God, and adorned with virtues, may obtain the kingdom of heaven.

[AD 444] Cyril of Alexandria on Luke 17:20-21
These miserable men ask in mockery, “When will the kingdom of God come?” This is like saying, “Before this kingdom of which you speak comes, cross and death will seize you.” What does Christ reply? He again displays his long-suffering and incomparable love to humanity. Reviled, he does not revile again. Suffering, he does not threaten. He does not harshly scold them, but because of their wickedness, he does not stoop to give them an answer to their question. He says only what is for the benefit of all people: that the kingdom of God does not come by watching. “Behold, the kingdom of God is within you.” He says, “Do not ask about the times in which the season of the kingdom of heaven will again arise and come. Rather, be eager that you may be found worthy of it. It is within you. That is, it depends on your own wills and is in your own power, whether or not you receive it. Everyone that has attained to justification by means of faith in Christ and decorated by every virtue is counted worthy of the kingdom of heaven.”

[AD 700] Isaac of Nineveh on Luke 17:20-21
“The kingdom of the heavens is within you.” You should not hope to find it in a place. It does not come in observation, according to the word of Christ.

[AD 735] Bede on Luke 17:20
And being asked by the Pharisees when the kingdom of God would come, he answered them and said: "The kingdom of God does not come with observation." They ask about the time of the kingdom of God, because as below Luke revealed, they thought that the kingdom of God would immediately be manifested when the Lord came to Jerusalem. Thus even the apostles, led by this opinion, asking him after his resurrection said: "Lord, will you at this time restore the kingdom to Israel?" (Acts I); and elsewhere Cleophas said: "But we had hoped that he was the one to redeem Israel" (Luke XXIV). However, the kingdom of God does not come with observation.

[AD 735] Bede on Luke 17:20-21
Or the kingdom of God means that He Himself is placed in the midst of them, that is, reigning in their hearts by faith.

[AD 220] Tertullian on Luke 17:21
" This means, "Neither in this place nor that place is the kingdom of God; for, behold, it is within you." And if the heretics, in their audacity, should contend that the Lord did not give an answer about His own kingdom, but only about the Creator's kingdom, concerning which they had inquired, then the following words are against them.

[AD 235] Hippolytus of Rome on Luke 17:21
But they assert that not only is there in favour of their doctrine, testimony to be drawn from the mysteries of the Assyrians, but also from those of the Phrygians concerning the happy nature-concealed, and yet at the same time disclosed-of things that have been, and are coming into existence, and moreover will be,-(a happy nature) which, (the Naassene) says, is the kingdom of heaven to be sought for within a man. And concerning this (nature) they hand down an explicit passage, occurring in the Gospel inscribed according to Thomas, expressing themselves thus: "He who seeks me, will find me in children from seven years old; for there concealed, I shall in the fourteenth age be made manifest." This, however, is not (the teaching) of Christ, but of Hippocrates, who uses these words: "A child of seven years is half of a father." And so it is that these (heretics), placing the originative nature of the universe in causative seed, (and) having ascertained the (aphorism) of Hippocrates, that a child of seven years old is half of a father, say that in fourteen years, according to Thomas, he is manifested. This, with them, is the ineffable and mystical Logos. They assert, then, that the Egyptians, who after the Phrygians, it is established, are of greater antiquity than all mankind, and who confessedly were the first to proclaim to all the rest of men the rites and orgies of, at the same time, all the gods, as well as the species and energies (of things), have the sacred and august, and for those who are not initiated, unspeakable mysteries of Isis. These, however, are not anything else than what by her of the seven dresses and sable robe was sought and snatched away, namely, the pudendum of Osiris. And they say that Osiris is water. But the seven-robed nature, encircled and arrayed with seven mantles of ethereal texture-for so they call the planetary stars, allegorizing and denominating them ethereal robes,-is as it were the changeable generation, and is exhibited as the creature transformed by the ineffable and unportrayable, and inconceivable and figureless one. And this, (the Naassene) says, is what is declared in Scripture, "The just will fall seven times, and rise again." For these falls, he says, are the changes of the stars, moved by Him who puts all things in motion.

[AD 235] Hippolytus of Rome on Luke 17:21
This, says he, was alone sufficient for its being understood by men; (I mean) the cup of Anacreon declaring, (albeit) mutely, an ineffable mystery. For dumb, says he, is Anacreon's cup; and (yet) Anacreon affirms that it speaks to himself, in language mute, as to what sort he must become-that is spiritual, not carnal-if he shall listen in silence to the concealed mystery. And this is the water in those fair nuptials which Jesus changing made into wine. This, he says, is the mighty and true beginning of miracles which Jesus performed in Cana of Galilee, and (thus) manifested the kingdom of heaven. This, says he, is the kingdom of heaven that reposes within us as a treasure, as leaven hid in the three measures of meal.

[AD 258] Cyprian on Luke 17:21
That the liberty of believing or of not believing is placed in free choice. In Deuteronomy: "Lo, I have set before thy face life and death, good and evil. Choose for thyself life, that thou mayest live." Also in Isaiah: "And if ye be willing, and hear me, ye shall eat the good of the land. But if ye be unwilling, and will not hear me, the sword shall consume you. For the mouth of the Lord hath spoken these things." Also in the Gospel according to Luke: "The kingdom of God is within you."

[AD 311] Peter of Alexandria on Luke 17:21
Moreover, we hear both also preaching, in the first place, not only repentance, but the kingdom of heaven, which, as we have learned, is within us;

[AD 735] Bede on Luke 17:21
Nor will they say, "Look, here it is!" Because neither angels nor humans can observe when it will come, just as the time of the Lord's Incarnation, predestined by the most certain prophecies of the prophets, and declared by the proclamations of angels, so that his conception, birth, baptism, preaching, death, resurrection, and ascension to heaven were incessantly accompanied by signs from either angels or humans or certainly miracles.

[AD 735] Bede on Luke 17:21
Behold, the kingdom of God is within you. The Kingdom of God itself says it is placed within them, that is, in their hearts, where they believed it reigns. Hence it is written: The word is near you, in your mouth and in your heart, that is, the word of faith we preach (Rom. X).

[AD 339] Eusebius of Caesarea on Luke 17:22-25
As if he said, If at the coming of Antichrist, his fame shall be spread abroad, as though Christ had appeared, go not out, nor follow him. For it cannot be that He who was once seen on earth, shall any more dwell in the corners of the earth. It will therefore be he of whom we speak, not the true Christ. For this is the clear sign of the second coming of our Saviour, that suddenly the lustre of His coming shall fill the whole world; and so it follows, For as the lightning that lighteneth, &c. For He will not appear walking upon the earth, as any common man, but will illuminate our whole universe, manifesting to all men the radiance of His divinity.

[AD 397] Ambrose of Milan on Luke 17:22-25
He who knows the signs of the coming judgment also knows the end. Why would he not know? He is like flashing lightning, since as the Light, the Son of God illumines the inner part of the heavenly mystery. “In that hour,” it says. He also knows the hour, but he knows it for himself, he does not know it for me. He then suitably asserts that the cause of the flood, fire and of the judgment proceeded from our sins, because God did not create evil, but our actions devised it for themselves.

[AD 444] Cyril of Alexandria on Luke 17:22-25
When our Lord said, The kingdom of God is within you, He would fain prepare His disciples for suffering, that being made strong they might be able to enter the kingdom of God; He therefore foretells to them, that before His coming from heaven at the end of the world, persecution will break out upon them. Hence it follows, And he said unto the disciples, The days will come, &c. meaning that so terrible will be the persecution, that they would desire to see one of His days, that is, of that time when they yet walked with Christ. Truly the Jews ofttimes beset Christ with reproaches and insults, and sought to stone Him, and ofttimes would have hurled Him down from the mountain; but even these seem to be looked upon as slight in comparison of greater evils that are to come.

Now His disciples supposed that He would go to Jerusalem, and would at once make a manifestation of the kingdom of God. To rid them therefore of this belief, He informs them that it became Him first to suffer the Life-giving Passion, then to ascend to the Father and shine forth from above, that He might judge the world in righteousness. Hence He adds, But first must he suffer many things, and be rejected of this generation.

[AD 444] Cyril of Alexandria on Luke 17:22-25
He now speaks to the holy disciples as his true companions. He says, “The days will come when you will desire to see one of the days of the Son of man, and will not see it.” … He would have them prepared for all that can cause people grief. He wants them ready to endure patiently so that approved they may enter the kingdom of God. He warns them that before his coming from heaven at the consummation of the world, tribulation and persecution will precede him. They will wish to see one of the days of the Son of man, such as those when they were still going around with Christ and speaking with him.

[AD 444] Cyril of Alexandria on Luke 17:22-25
At the end time of the world, he will not descend from heaven obscurely or secretly, but with godlike glory and as dwelling in the light which no one can approach. He declared that his coming will be like the lightning. He was born indeed in the flesh of a woman, to fulfill the dispensation for our sakes. For this reason, he emptied himself, made himself poor, and no longer showed himself in the glory of the Godhead. The season and the necessity of the dispensation summoned him to this humiliation. After his resurrection from the dead, ascension into heaven, and enthronement with God the Father, he will descend again. He will not descend with his glory withdrawn or in the lowliness of human nature. In the majesty of the Father with the companies of the angels guarding him, he will stand before him as God and Lord of all. He will come as the lightning, and not secretly.

[AD 444] Cyril of Alexandria on Luke 17:22-25
That they might know that he was about first to undergo his saving passion, abolish death by the death of his flesh, put away the sin of the world, destroy the ruler of this world, ascend to the Father and in due time appear to judge the world in righteousness, he says that he must first suffer many things.

[AD 735] Bede on Luke 17:22
And he said to the disciples: The days will come when you will long to see one of the days of the Son of Man, and you will not see it. This is the kingdom of God, which we hope for to see the day of Christ, and indeed one day, because in that glory of bliss, the prophet sighing said: For one day in your courts is better than a thousand (Psal. LXXXIII), there is no interruption of darkness, no memory at all of misery or pain, which have gone away, clouding the light of perpetual peace. Therefore, it is good to desire the presence of this day, but not to imagine everything to us in the greatness of desire, as if the day of the Lord were at hand. Hence also the Lord aptly added while predicting the future:

[AD 735] Bede on Luke 17:22-25
Or, by the day of Christ He signifies His kingdom, which we hope will come, and He rightly says, one day, because there shall no darkness disturb the glory of that blessed time. It is right then to long for the day of Christ, yet from the earnestness of our longing, let us not vision to ourselves as though the day were at hand. Hence it follows, And they shall say to you, Lo here! and, Lo there!

And he well says, that lighteneth out of the one part under heaven, because the judgment will be given under the heaven, that is, in the midst of the air, as the Apostle says, We shall be caught up together with them in the clouds. (1 Thess. 4:17.) But if the Lord shall appear at the Judgment like lightning, then shall no one remain hidden in the deep of his heart, for the very brightness of the Judge pierces through him; we may also take this answer of our Lord to refer to His coming, whereby He comes daily into His Church. For ofttimes have heretics so vexed the Church, by saying that the faith of Christ stands in their own dogma, that the faithful in those times longed that the Lord would if it were possible even for one day return to the earth, and Himself make known what was the true faith. And you shall not see it, because it need not that the Lord should again testify by a bodily presence that which has been spiritually declared by the light of the Gospel, once scattered and diffused throughout the whole world.

He means the generation not only of the Jews, but also of all wicked men, by whom even now in His own body, that is, His Church, the Son of man suffers many things, and is rejected. But while He spake many things of His coming in glory, He inserts something also concerning His Passion, that when men saw Him dying, whom they had heard would be glorified, they might both soothe their sorrow for His sufferings by the hope of the promised glory, and at the same time prepare themselves, if they love the glories of His kingdom, to look without alarm upon the horrors of death.

[AD 1107] Theophylact of Ohrid on Luke 17:22-25
For their life was then without trouble, for Christ took care of them and protected them. But the time was coming when Christ should be taken away, and they should be exposed to perils, being brought before kings and princes, and then they should long for the first time and its tranquillity.

[AD 735] Bede on Luke 17:23
And they will say to you: Look, there. Do not go, do not hurry. Although this sentence can be understood not only for a time, but also for a person. And indeed for a time, because there arose some who, calculating the courses of ages, would say they had found the certain year, day, and hour of the end of the world, against the authority of the Lord saying: It is not for you to know the times or the moments (Acts I). As for the person, because many heretics came against the Church, and many will come, who assert themselves to be Christs, the first of whom is Simon Magus, and the last, greater than others, is the Antichrist. Therefore, if anyone says to you, Look here, look there, that is, that in this or that person, or hour, the kingdom of God is coming or is going to come, they are not to be followed, who do not fear to seek higher things and to say unspeakable things.

[AD 735] Bede on Luke 17:24
For as a lightning flash that lights up from under heaven shines unto everything under heaven, so will the Son of Man be in His day. This is what the psalm says: God will come manifest, our God, and will not keep silent (Psalm XLIX), because clearly the second coming of the Savior will be not in humility as before, but in glory and majesty. And it is beautifully said: Flashing from under heaven, because judgment will happen under heaven, that is, in the midst of the air, as the Apostle testifies, who says: We will be caught up together with them in the clouds to meet the Lord in the air (I Thess. IV). But if the Lord will appear in judgment like lightning, then no one will be allowed to hide in his mind, because he is penetrated by the very brightness of the judge. Therefore, neither the time nor place of His coming can be observed by mortals, as He will obviously come blazing and sudden like lightning to all. However, this response of the Lord can also not incongruously be taken regarding that coming of His, by which He comes daily in the Church. For the Kingdom of God is within us, because He who will come as the judge of all in time now even presently reigns in the hearts of the faithful. Indeed, the heretics often so disturbed the Church, each saying in his own doctrine that the faith of Christ remains, that the faithful of those times desired the Lord to return to earth, even for one day if it were possible, and by Himself to declare the truth of faith as it stands. And he said: And you will not see, because it is not necessary to return the Lord in this bodily vision, which once the brightness of His Gospel was spread throughout the entire world He has spiritually exhibited, and against all the assaults of apocryphal writings He has established with the undivided light of His love.

[AD 220] Tertullian on Luke 17:25
For He tells them that "the Son of man must suffer many things, and be rejected," before His coming, at which His kingdom will be really revealed.

[AD 735] Bede on Luke 17:25
But first, it is necessary for him to suffer many things and be rejected by this generation. The Lord, speaking much about the glory of His advent, also took care to insert a few words about the terror of His passion so that when they would see Him dying, whom they had heard would be glorified, the pain of the passion would be mitigated by the hope of the promised glory, and at the same time, they themselves might prepare, if they love the glory of the kingdom, not to dread the danger of death. However, the generation He refers to is not only the Jews but all the reprobate, by whom even now the Son of Man in His body, that is, in the Church, suffers many things and is rejected. For although the head of this body, which indeed is ourselves, already rises freely above all, nevertheless He still feels the wounds of the reprobate through His body, which He holds downward.

[AD 202] Irenaeus on Luke 17:26
"For as it was in the days of Noe, they did eat and drink, they bought and sold, they married and were given in marriage, and they knew not, until Noe entered into the ark, and the flood came and destroyed them all; as also it was in the days of Lot, they did eat and drink, they bought and sold, they planted and builded, until the time that Lot went out of Sodom; it rained fire from heaven, and destroyed them all: so shall it also be at the coming of the Son of man."

[AD 220] Tertullian on Luke 17:26
If, however, He speaks of His own coming, why does He compare it with the days of Noe and of Lot, which were dark and terrible-a mild and gentle God as He is? Why does He bid us "remember Lot's wife," who despised the Creator's command, and was punished for her contempt, if He does not come with judgment to avenge the infraction of His precepts? If He really does punish, like the Creator, if He is my Judge, He ought not to have adduced examples for the purpose of instructing me from Him whom He yet destroys, that He might not seem to be my instructor.

[AD 253] Origen of Alexandria on Luke 17:26-33
“The law is spiritual” and the things that happened to the ancients “happened figuratively.” Let us see if perhaps Lot, who did not look back, is the rational understanding and the courageous soul. His wife here represents the flesh. The flesh always looks to vices. When the soul is going toward salvation, it looks backward and seeks pleasures. Concerning this, the Lord also said, “No man putting his hand to the plow and looking back is fit for the kingdom of God.” He adds, “Remember Lot’s wife.” The fact that “she became a little statue of salt” appears to be an open indication of her foolishness. Salt represents the wisdom that she lacked.

[AD 339] Eusebius of Caesarea on Luke 17:26-30
Having used the example of the deluge, that no one might expect a future deluge by water, our Lord cites, secondly, the example of Lot, to show the manner of the destruction of the wicked, namely, that the wrath of God would descend upon them by fire from heaven.

He does not say that fire came down from heaven upon the wicked Sodomites before that Lot went out from them, just as the deluge did not swallow up the inhabitants of the earth before that Noah entered the ark; for as long as Noah and Lot dwelt with the wicked, God suspended His anger that they might not perish together with the sinners, but when He would destroy those, He withdrew the righteous. So also at the end of the world, the consummation shall not come before all the just are separated from the wicked.

[AD 397] Ambrose of Milan on Luke 17:26-33
“He that will be on the housetop, do not let him go down. He that will be in the field, do not let him turn back.” How may I understand what is the field unless Jesus himself teaches me? He says, “No one putting his hand to the plough and looking back is fit for the kingdom of God.” The lazy person sits in the farmhouse, but the industrious person plants in the field. The weak are at the fireplace, but the strong are at the plough. The smell of a field is good, because the smell of Jacob is the smell of a full field. A field is full of flowers. It is full of different fruits. Plough your field if you want to be sent to the kingdom of God. Let your field flower, fruitful with good rewards. Let there be a fruitful vine on the sides of your house and young olive plants around your table. Already aware of its fertility, let your soul, sown with the Word of God and tilled by spiritual farming, say to Christ, “Come, my brother, let us go out into the field.” Let him reply, “I have come into my garden, my sister, my bride. I have gathered my vintage of myrrh.” What is better than the vintage of faith, by which the fruit of the resurrection is stored and the spring of eternal rejoicing is watered?

[AD 397] Ambrose of Milan on Luke 17:26-33
For this reason, the Lord says, “Remember Lot’s wife,” who because she looked back, lost the function of her own nature. Satan31 and Sodom are behind. Flee excess and shun extravagance. Know that not everyone can flee to the mountain. Remember that the one who did not return to his old pursuits, as if to Sodom, escaped because he came to the mountain. She, who was weaker since she looked back, could not come to the mountain. She remained, although her husband’s help supported her.

[AD 397] Ambrose of Milan on Luke 17:26-30
He rightly declares the deluge to have been caused by our sins, for God did not create evil, but our deservings found it out for themselves. Let it not however be supposed that marriages, or again meat and drink, are condemned, seeing that by the one succession is sustained, by the other nature, but moderation is to be sought for in all things. For whatsoever is more than this is of evil.

[AD 407] John Chrysostom on Luke 17:26-30
(Hom. 1, in Ep. 1. ad Thess.) For refusing to believe the words of warning they were suddenly visited with a real punishment from God; but their unbelief proceeded from self-indulgence, and softness of mind. For such as a man's wishes and inclinations are, will also be his expectations. Therefore it follows, they eat and drank.

[AD 430] Augustine of Hippo on Luke 17:26-33
In the days of Noah this preaching to them was futile because they did not believe when the patience of God waited for them for many years in which the ark was built. Its building was in a sense a kind of preaching. In the same way today, their imitators do not believe. They are shut up in the darkness of ignorance. They are like in a prison, looking in vain on the church being built throughout the whole world. Judgment threatens them as did the flood in which all the unbelievers perished. The Lord says, “As in the days of Noah, so will it be also in the days of the Son of man. They were eating and drinking, marrying and giving in marriage until Noah entered the ark, and the flood came and destroyed them all.” Since this signified a future event, the flood also signified baptism for believers and death for unbelievers. There is also a symbol in what was spoken and not done, where it is written about the stone that signifies Christ. Two effects were foretold. It is a stumbling block for unbelievers and a building for believers.

[AD 430] Augustine of Hippo on Luke 17:26-33
Regarding the saying, “He that is on the housetop, let him not come down to take anything out of his house, and he that is in the field, let him not go back to take his coat,” it can be suitably taken in a spiritual sense. In all our trials, each one must take care not to be overcome or to come down from a spiritual height to a carnal life. He who had progressed should not look back by turning toward the past or failing to reach out to the future. This is true of every trial. How much greater care must be prescribed in a trial such as that foretold for the city as “Such as has not been from the beginning, neither will be”? How much more this is true for that final tribulation which is to come on the world, that is, the church spread through the whole world?

[AD 444] Cyril of Alexandria on Luke 17:26-33
To show that he will appear unexpectedly and with no one knowing it, the Lord says that the end of the world will come and be as it was in the days of Noah and Lot. He says, “They were eating and drinking, and were taking wives and being made the wives of men. They were selling and buying and building,” but the coming of the waters destroyed the one, while the others were the prey and food of fire and brimstone. What does this signify? It signifies that he requires us to be always watchful and ready to make our defense before the tribunal of God.

[AD 444] Cyril of Alexandria on Luke 17:26-33
The Savior … was speaking of the last day, that is, the end of this world.… Strengthening them to recall the last day and the end time, he commands them to disregard all earthly and temporary matters and look only to one end, the duty of everyone saving his soul. He says, “He that is on the housetop, do not let him go down to the house to carry away his goods.” In these words, he apparently means the one who is at ease, living in wealth and worldly glory. Those that stand on the housetops are always conspicuous in the eyes of those who are around the house.

[AD 444] Cyril of Alexandria on Luke 17:26-33
He says, “Even if anyone is in the field, in the same way, do not let him turn back.” That means if anyone is found devoted to work and occupied in labor, earnestly desiring spiritual fruitfulness and gathering the wages of virtuous toil, let him hold firmly to this diligence. Let him not turn back. As Christ himself has again said somewhere, “No one that puts his hand to the plough and turns back is fit also for the kingdom of heaven.” It is our duty to maintain our religious exertions without wavering and to persevere in them with undaunted wills or else we may suffer the kind of fate that befell the woman at Sodom. We take her as an example because he says, “Remember Lot’s wife. For when she was rescued from Sodom, but would afterward have returned, she became a pillar of salt.” That means she became foolish and stonelike.

[AD 444] Cyril of Alexandria on Luke 17:26-33
Whoever loses his life shall certainty save it. This is what the blessed martyrs did, enduring conflicts even to loss of blood and life and placing on their heads as their crown their true love for Christ. Those who, from weakness of resolution and mind, denied the faith and fled from the present death of the body, became their own murderers. They will go down to hell to suffer the penalties of their wicked cowardice. The judge will descend from heaven. He will call those who with all their heart have loved him and earnestly practiced a completely virtuous life, saying, “Come, you blessed of my Father, inherit the kingdom prepared for you from the foundations of the world.” He will pass a severe and overwhelming sentence on those who have led careless and unrestrained lives or have not maintained the glory of faith in him, saying to them, “Depart, you cursed, into everlasting fire.”

[AD 735] Bede on Luke 17:26
And as it was in the days of Noah, so will it be in the days of the Son of Man. He affirms the suddenness of His coming with many examples. For what He had compared to lightning quickly traversing everything, He compares to the days of Noah or Lot, when sudden destruction came upon mortals.

[AD 735] Bede on Luke 17:26-30
The coming of our Lord, which He had compared to lightning flying swiftly across the heavens, He now likens to the days of Noah and Lot, when a sudden destruction came upon mankind.

Now Noah builds the ark mystically. The Lord builds His Church of Christ's faithful servants, by uniting them together in one, as smooth pieces of wood; and when it is perfectly finished, He enters it: as at the day of Judgment, He who ever dwells within His Church enlightens it with His visible presence. But while the ark is in building, the wicked flourish, when it is entered, they perish; as they who revile the saints in their warfare here, shall when they are crowned hereafter be smitten with eternal condemnation.

Passing by the unutterable wickedness of the Sodomites, He mentions only those which may be thought trifling offences, or none at all; that you may understand how fearfully unlawful pleasures are punished, when lawful pleasures taken to excess receive for their reward fire and brimstone.

For He who in the mean time though we see Him not yet sees all things, shall then appear to judge all things. And He shall come especially at that time, when He shall see all who are forgetful of His judgments in bondage to this world.

Now mystically, Lot, which is interpreted 'turning aside,' is the people of the elect, who, while in Sodom, i. e. among the wicked, live as strangers, to the utmost of their power turning aside from all their wicked ways. But when Lot went out, Sodom is destroyed, for at the end of the world, the angels shall go forth and sever the wicked from among the just, and cast them into a furnace of fire. (Matt. 13:49.) The fire and brimstone, however, which He relates to have rained from heaven, does not signify the flame itself of everlasting punishment, but the sudden coming of that day.

[AD 1107] Theophylact of Ohrid on Luke 17:26-30
For when Antichrist has come, then shall men become wanton, given up to abominable vices, as the Apostle says, Lovers of pleasure rather than lovers of God. (2 Tim. 3:4.) For if Antichrist is the dwelling-place of every sin, what else will he then implant in the miserable race of men, but what belongs to himself. And this our Lord implies by the instances of the deluge and the people of Sodom.

[AD 735] Bede on Luke 17:27
They ate and drank, they married wives, and they were given in marriage. This does not condemn marriages or food as per the insane doctrines of Marcion, Manichaeus, and Tatian the leader of the Encratites, as in these matters lie the supports of succession, and in those of nature, but, as the Apostle says: “All things are lawful for me, but not all things are helpful” (1 Corinthians 6), it is rather the immoderate use of permissible things that is condemned. For it is not because they gave themselves wholly to these things and despised God's judgments that they perished by water or by fire.

[AD 735] Bede on Luke 17:27
Until the day Noah entered the ark, and the flood came and destroyed them all. Noah builds the ark, just as the Lord constructs the Church by uniting faithful men, as if they were smoothed timbers. He enters it perfectly completed, when, in the day of judgment, He illuminates it with the presence of His eternal vision. But while the ark is being built, the wicked indulge in pleasure: when it is entered, they perish because those who here insult the struggling saints will be punished with eternal damnation when they are crowned there.

[AD 215] Clement of Alexandria on Luke 17:28
Et rursus: "Sicut autem erat in diebus Noe, erant nubentes, et nuptui dantes, aedificantes, et plant antes; et sicut erat in diebus Lot, ita erit adventus Filii hominis.".
Et quod hoc non dicit ad genies, Ostend it, cum subjungit: "Num cum venerit Filius hominis, inveniet fidem in terra? "

[AD 220] Tertullian on Luke 17:28
Let us marry daily, and in the midst of our marrying let us be overtaken, like Sodom and Gomorrah, by that day of fear! For there it was not only, of course, that they were dealing in marriage and merchandise; but when He says, "They were marrying and buying," He sets a brand upon the very leading vices of the flesh and of the world, which call men off the most from divine disciplines-the one through the pleasure of rioting, the other though the greed of acquiring.

[AD 735] Bede on Luke 17:28
Similarly as it was in the days of Lot, they were eating and drinking, buying and selling, planting and building. The Lord, omitting that great and abominable crime of the Sodomites, mentions only those sins which could have been considered light or none at all, so that one may understand what punishment illicit actions may receive, if lawful actions and those without which this life cannot be led, when done immoderately, are punished by fire and sulfur. Therefore, the blessed Augustine, upon seeing the allurements of a harmful habit and stirred by just sorrow, exclaims: "Woe to the sins of men, which alone we shudder at only because they are unusual; yet the usual ones, for the purging of which the blood of the Son of God was shed, although they are so great that they entirely block the kingdom of God against them, by seeing them repeatedly, we are often compelled to tolerate all, and often by tolerating, even to commit some of them. And would that, O Lord, we do not commit everything that we could not prohibit."

[AD 735] Bede on Luke 17:29
But on the day when Lot went out from Sodom, it rained fire and sulfur from heaven and destroyed them all. Hitherto Lot in Sodom, that is, the chosen people among the reprobate, dwells as a stranger, both just in sight and hearing, and according to the interpretation of the name Lot, avoiding their crimes as much as he could. But with Lot departing, Sodom will perish. Because at the end of the age, the angels will go out and separate the wicked from among the just and cast them into the fiery furnace. Here it should be noted that the fire and sulfur which he recalls rained from heaven do not signify the very flame of perpetual punishment but the sudden advent of that day. For that perpetual fire will not come and punish the impious, but rather they will be cast out from the sight of the Judge and sent into the eternal fire, although we do not doubt that sulfur is also present in that fire, as testified by John, who describes both fires, that of sudden chastisement and of eternal burning, saying: "And fire came down from God out of heaven and devoured them, and the devil who seduced them was cast into the lake of fire and sulfur, where both the beast and the false prophets are and shall be tormented day and night forever and ever" (Revelation 20).

[AD 735] Bede on Luke 17:30
According to these things will be the day when the Son of Man will be revealed. Beautifully He will be revealed, because He who now unseen sees everything, then seen will judge everything. However, He will appear to judge at the very time when He will see all forgotten of His judgments, given over to this world. For although the end of the world is set to come at a predetermined time, yet with the love of many growing cold towards the end, the iniquity of the human race will increase so much that it must deservedly be destroyed along with the world it inhabits. Even now we see countless people so devoted to revelry and drunkenness, buying and selling, and other worldly matters, that it’s clear they provoked the wrath of the strict judge, but we fear that worse things are yet to come, things which no wise person can even think about without grave sorrow. For what was once said about one sinful nation to be destroyed: The sin of the Amorites has not yet reached its full measure (Genesis 15), undoubtedly must be understood concerning the entire mass of the wicked to be condemned.

[AD 258] Cyprian on Luke 17:31
That those who are snatched from the jaws of the devil, and delivered from the snares of this world, ought not again to return to the world, lest they should lose the advantage of their withdrawal therefrom. In Exodus the Jewish people, prefigured as a shadow and image of us, when, with God for their guardian and avenger, they had escaped the most severe slavery of Pharaoh and of Egypt-that is, of the devil and the world-faithless and ungrateful in respect of God, murmur against Moses, looking back to the discomforts of the desert and of their labour; and, not understanding the divine benefits of liberty and salvation, they seek to return to the slavery of Egypt-that is, of the world whence they had been drawn forth-when they ought rather to have trusted and believed on God, since He who delivers His people from the devil and the world, protects them also when delivered. "Wherefore hast thou thus done with us," say they, "in casting us forth out of Egypt? It is better for us to serve the Egyptians than to die in this wilderness. And Moses said unto the people, Trust, and stand fast, and see the salvation which is from the Lord, which He shall do to you to-day. The Lord Himself shall fight for you, and ye shall hold your peace." The Lord, admonishing us of this in His Gospel, and teaching that we should not return again to the devil and to the world, which we have renounced, and whence we have escaped, says: "No man looking back, land putting his hand to the plough, is fit for the kingdom of God." And again: "And let him that is in the field not return back. Remember Lot's wife." And lest any one should be retarded by any covetousness of wealth or attraction of his own people from following Christ, He adds, and says: "He that forsaketh not all that he hath, cannot be my disciple."

[AD 339] Eusebius of Caesarea on Luke 17:31-33
He hereby implies that a persecution will come from the son of perdition upon Christ's faithful. By that day then He means the time previous to the end of the world, in which let not him who is flying return, nor care to lose his goods, lest he imitate Lot's wife, who when she fled out of the city of Sodom, turning back, died, and became a pillar of salt.

[AD 397] Ambrose of Milan on Luke 17:31-33
Because good men must needs on account of the wicked be sore vexed in this world, in order that they may receive a more plentiful reward in the world to come, they are here punished with certain remedies, as it is here said, In that day, &c. that is, if a man goes up to the top of his house and rises to the summit of the highest virtues, let him not fall back to the grovelling business of this world.

Because thus she looked behind, she lost the gift of her nature. For Satan is behind, behind also Sodom. Wherefore flee from intemperance, turn away from lust, for recollect, that he who turned not back to his old pursuits escaped, because he reached the mount; whereas she looking back to what was left behind, could not even by the aid of her husband reach the mount, but remained fixed.

[AD 430] Augustine of Hippo on Luke 17:31-33
For he is on the housetop who, departing from carnal things, breathes as it were the free air of a spiritual life. But the vessels in the house are the carnal senses, which many using to discover truth which is only taken in by the intellect, have entirely missed it. Let the spiritual man then beware, lest in the day of tribulation he again take pleasure in the carnal life which is fed by the bodily senses, and descend to take away this world's vessels. It follows, And he that is in the field, let him not return back; that is, He who labours in the Church, as Paul planting and Apollos watering, let him not look back upon the worldly prospects which he has renounced.

Lot's wife represents those who in time of trouble look back and turn aside from the hope of the divine promise, and hence she was made a pillar of salt as a warning to men not to do likewise, and to season as it were their hearts, lest they become corrupt.

[AD 444] Cyril of Alexandria on Luke 17:31-33
How a man may lose his own life to save it, St. Paul explains when he speaks of some who crucified their flesh with the affections and lusts, (Gal. 5:24.) that is, with perseverance and devotion engaging in the conflict.

[AD 735] Bede on Luke 17:31
In that hour, whoever is on the housetop, and his goods are in the house, let him not come down to take them away. So far it has been mentioned that the kingdom of God, that is Christ, will come not with observation, but unexpectedly; now it is shown by whom this same coming should be expected. Therefore, he is on the housetop who, exceeding the carnal, lives spiritually as if in free air. His goods in the house are carnal desires, which he had loved too much, but seeking heavenly things had left in this world, which he must by no means retrieve with the judgment impending. For He does not speak of that hour when the judge comes, but when He is about to come, not when the fire descended on Sodom, but when Lot is compelled to leave, or rather when he, hesitating, is seized and taken out by the angels. For no one, when the judge is already coming and appearing, would be able or willing to descend into this world to take anything from it. But this hour is happening today as we anxiously watch for the coming judge, not knowing when He will come. About this, John said: "Dear children, this is the last hour" (1 John 2).

[AD 735] Bede on Luke 17:31
And he who is in the field, likewise, let him not turn back. He who works in the Church, and like Paul and Apollo plants and waters, let him not look back to secular hope, to which he has renounced.

[AD 735] Bede on Luke 17:31-33
Now mystically, Lot, which is interpreted 'turning aside,' is the people of the elect, who, while in Sodom, i. e. among the wicked, live as strangers, to the utmost of their power turning aside from all their wicked ways. But when Lot went out, Sodom is destroyed, for at the end of the world, the angels shall go forth and sever the wicked from among the just, and cast them into a furnace of fire. (Matt. 13:49.) The fire and brimstone, however, which He relates to have rained from heaven, does not signify the flame itself of everlasting punishment, but the sudden coming of that day.

[AD 1107] Theophylact of Ohrid on Luke 17:31-33
Matthew relates all these things to have been said by our Lord, with reference to the destruction of Jerusalem, that when the Romans came upon them, they who were on the housetop should not come down to take any thing, but fly at once, nor they that were in the field return home. And surely so it was at the taking of Jerusalem, and again will be at the coming of Antichrist, but much more at the completion of all things, when that intolerable destruction shall come.

Next follows the promise, Whosoever shall seek, &c. as if he said, Let no man in the persecutions of Antichrist seek to secure his life, for he shall lose it, but whoso shall expose himself to trials and death shall be safe, never submitting himself to the tyrant from his love of life.

[AD 220] Tertullian on Luke 17:32
If, however, He speaks of His own coming, why does He compare it with the days of Noe and of Lot, which were dark and terrible-a mild and gentle God as He is? Why does He bid us "remember Lot's wife," who despised the Creator's command, and was punished for her contempt, if He does not come with judgment to avenge the infraction of His precepts? If He really does punish, like the Creator, if He is my Judge, He ought not to have adduced examples for the purpose of instructing me from Him whom He yet destroys, that He might not seem to be my instructor.

[AD 735] Bede on Luke 17:32
Remember Lot’s wife. Lot’s wife signifies those who in tribulation look back and turn away from the hope of God’s promise. Therefore, she was made into a pillar of salt, as a warning to people not to do this, as if they season their heart, so that they may not be foolish.

[AD 735] Bede on Luke 17:33
Whoever seeks to save his life will lose it. This sentence can be correctly understood in two ways, but both meanings refer to one single end, namely, to suffer adversities for Christ, indeed not to fear to endure death itself. For he who, with death threatening from a persecutor, if he does not deny Christ, prefers rather to save his life for a time by denying, undoubtedly prepares it for eternal perdition. Likewise, he who seeks the eternal salvation of his soul, does not doubt to lose it temporally into the hands of persecutors, that is, to give it into death. But to both meanings, what follows fits aptly:

[AD 735] Bede on Luke 17:33
And whoever loses it will save it. That is, whoever loses it here, will save it there, he who has delivered it to death for Christ, considering it all day as a sheep to be slaughtered (Romans 8), then with Christ rising and helping, will find it free for the sake of the name of Christ.

[AD 202] Irenaeus on Luke 17:34
And when two are in one bed, to take the one, and to leave the other; and of two women grinding at the mill, to take one and leave the other:
[AD 339] Eusebius of Caesarea on Luke 17:34-37
Or by the eagles feeding on the dead animals, he has here described the rulers of the world, and those who shall at that time persecute the saints of God, in whose power are left all those who are unworthy of being taken up, who are called the body or carcase. Or by the eagles are meant the avenging powers which shall fly about to torment the wicked.

[AD 397] Ambrose of Milan on Luke 17:34-35
He fittingly said, “night,” because the Antichrist is the hour of darkness. The Antichrist spreads darkness in the hearts of people, when he says he is the Christ.… Christ, like flashing lightning, scatters the spheres of his light throughout the world. He does not wander through the desert. He is not enclosed in some other places, because the Lord says, “I fill heaven and earth.” He shines with the light of his splendor, so that we may see his glory in that night of the resurrection.

[AD 397] Ambrose of Milan on Luke 17:34-35
Two people in this world, which is very often compared with a field, are believers and unbelievers. One will receive the reward of their merits; therefore the faithful one is taken, but the faithless is left.

[AD 397] Ambrose of Milan on Luke 17:34-37
He rightly says, night, for Antichrist is the hour of darkness, because he pours a dark cloud over the minds of men while he declares himself to be Christ. But Christ as lightning shines brightly, that we may be able to see in that night the glory of the resurrection.

Or out of the same bed of human infirmity, one is left, that is, rejected, another is taken up, that is, is caught to meet Christ in the air. By the two grinding together, he seems to imply the poor and the oppressed. To which belongs what follows. Two men shall be in the field, &c. For in these there is no slight difference. For some nobly bear up against the burden of poverty, leading a lowly but honest life, and these shall be taken up; but the others are very active in wickedness, and they shall be left. Or those grinding at the mill seem to represent such as seek nourishment from hidden sources, and from secret places draw forth things openly to view. And perhaps the world is a kind of corn mill, in which the soul is shut up as in a bodily prison. And in this corn mill either the synagogue or the soul exposed to sin, like the wheat, softened by grinding and spoilt by too great moisture, cannot separate the outward from the inner parts, and so is left because its flour dissatisfies. But the holy Church, or the soul which is not soiled by the stains of sin, which grinds such wheat as is ripened by the heat of the eternal sun, presents to God a good flour from the secret shrines of the heart. Who the two men in the field are we may discover if we consider, that there are two minds in us, one of the outer man which wasteth away, the other of the inner man which is renewed by the Sacrament. These are then the labourers in the field, the one of which by diligence brings forth good fruit, the other by idleness loses that which he has. Or those who are compared we may interpret to be two nations, one of which being faithful is taken, the other being unfaithful is left.

For God is not unjust that He should separate in His reward of their deserts men of like pursuits in life, and not differing in the quality of their actions. But the habit of living together does not equalize the merits of men, for not all accomplish what they attempt, but he only who shall persevere to the end shall be saved.

For the souls of the righteous are likened to eagles, because they soar high and forsake the lower parts, and are said to live to a great age. Now concerning the body, we can have no doubt, and above all if we remember that Joseph received the body from Pilate. (Matt. 28.) And do not you see the eagles around the body are the women and Apostles gathered together around our Lord's sepulchre? Do not you see them then, when he shall come in the clouds, and every eye shall behold him? (Rev. 1:7.) But the body is that of which it was said, My flesh is meat indeed; (John 6:55.) and around this body are the eagles which fly about on the wings of the Spirit, around it also eagles which believe that Christ has come in the flesh. And this body is the Church, in which by the grace of baptism we are renewed in the Spirit.

[AD 430] Augustine of Hippo on Luke 17:34-37
(de Qu. Ev. lib. ii. qu. 41.) Or He says, in that night, meaning in that tribulation.

(de Qu. Ev. ut sup) Or there are three classes of men here represented. The first is composed of those who prefer their ease and quiet, and busy not themselves in secular or ecclesiastical concerns. And this quiet life of theirs is signified by the bed. The next class embraces those who being placed among the people are governed by teachers. And such he has described by the name of women, because it is best for them to be ruled by the advice of those who are set over them; and he has described these as grinding at the mill, because in their hands revolves the wheel and circle of temporal concerns. And with reference to these matters he has represented them as grinding together, inasmuch as they give their services to the benefit of the Church. The third class are those who labour in the ministry of the Church as in the field of God. In each of these three classes then there are two sorts of men, of which the one abide in the Church and are taken up, the other fall away and are left.

(de Con. Ev. l. ii. c. 7.) these things which Luke has given us in a different place from Matthew, he either relates by anticipation, so as to mention beforehand what was afterwards spoken by our Lord, or he means us to understand that they were twice uttered by Him.

[AD 444] Cyril of Alexandria on Luke 17:34-35
By the two who are in one bed, he seems to hint at those who live in rest and plenty. They are equal to one another, as far as being possessed of worldly affluence. The bed is the symbol of rest. He says, “One of them will be taken, and one will be left.” How is one taken? Not all those who are possessed of wealth and ease in this world are wicked and merciless.

[AD 444] Cyril of Alexandria on Luke 17:34-35
He says, “Two women will be grinding at a mill. The one will be taken, and the other left.” By these he again seems to mean those who live in poverty and labor. Even in these, he says that there is a certain vast difference. Some have carried the burden of poverty courageously, honoring a serious and virtuous way of life. Others have been of a different character. They are planners for every wicked practice and all shamefulness. There will be even in their case a full and exact investigation of their manners. The good will be taken, and he that is not good will be left.

[AD 444] Cyril of Alexandria on Luke 17:34-37
How a man may lose his own life to save it, St. Paul explains when he speaks of some who crucified their flesh with the affections and lusts, (Gal. 5:24.) that is, with perseverance and devotion engaging in the conflict.

For by the two men in one bed, He seems to denote the rich who repose themselves in worldly pleasures, for a bed is a sign of rest. But not all who abound in riches are wicked, but if one is good and elect in the faith, he will be taken, but another who is not so will be left. For when our Lord descends to judgment, He will send His Angels, who while they leave behind on the earth the rest to suffer punishment, will bring the holy and righteous men to Him; according to the Apostle's words, We shall be caught up together in the clouds to meet Christ in the air. (1 Thess 4:17.)

When He said that some should be taken up, the disciples not unprofitably inquire, 'Where, Lord?'

As if He said, As when a dead body is thrown away, all the birds which feed on human flesh flock to it, so when the Son of man shall come, all the eagles, that is, the saints, shall haste to meet Him.

[AD 735] Bede on Luke 17:34
I tell you, on that night there will be two in one bed. The Lord had said above that he who is in the field should not turn back, so that you would not think that it was said only about those who openly intend to turn back from the field, that is, to deny the Lord. He continues to show that there are some who, even though they seem to have their faces turned forward, still look back with their mind and spirit. Therefore, in that night, he said, in that tribulation so dark, that even the elect might be led astray, if it were possible (Matthew 24), there will be two in one bed, those namely who choose ease and rest, neither occupied with secular affairs, nor with ecclesiastical matters, which their rest by the name of bed signifies.

[AD 735] Bede on Luke 17:34
One will be taken, and the other left. It is not as if it was said about two men, but about two kinds of affections. For he who has strived for continence for the sake of God, so that living without anxiety he may consider the things of God (I Cor. VII), will be taken by God; but he who has wounded the monastic state of life with which he is imbued, either from love of human praise or by any other corruption of vices, he, as to where he is to be left, the lamentations of Jeremiah hint, who describing the fall of any idle and sinful soul under the image of Judea, says: The enemies have seen her, and have laughed at her Sabbaths (Lam. I).

[AD 735] Bede on Luke 17:34-37
Our Lord had just before said, that he who is in the field must not return back; and lest this should seem to have been spoken of those only who would openly return from the field, that is, who would publicly deny their Lord, He goes on to show, that there are some who, while seeming to turn their face forward, are yet in their heart looking behind.

Our Lord was asked two questions, where the good should be taken up, and where the bad left; He gave only one answer, and left the other to be understood, saying, Wheresoever the body is, thither will the eagles be gathered together.

[AD 1107] Theophylact of Ohrid on Luke 17:34-37
Or He teaches us the suddenness of Christ's coming, which we are told will be in the night. And having said that the rich can scarcely be saved, He shows that not all the rich perish, nor all the poor are saved.

[AD 735] Bede on Luke 17:35
There will be two grinding at the mill. He calls those grinding at the mill who are placed among the people and are governed by teachers, doing the things of this world, whom he also signifies by the name of women, because, as I said, it is expedient for them to be governed by the counsels of the skilled. And he said grinding, on account of the circle and cycle of temporal affairs. Yet he said in one grinding, inasmuch as they provide for the uses of the Church out of their own resources and businesses. For every action of this world is a mill, which while it gathers many cares, it turns human minds as if in a circle, and casts forth like flour, because it constantly generates minute thoughts in a restless heart.

[AD 735] Bede on Luke 17:35
One will be taken, and the other left. That part which has engaged in marriage only for the love of offspring and has dispensed earthly substance for acquiring heavenly things will be taken; but that which has served marriages for the allurements of the flesh, and whatever earthly things it may have offered to the Church or the poor, did so in order that, as if having made a bargain with the Lord, it might more abundantly abound with these things, will be left.

[AD 735] Bede on Luke 17:36
Two will be in the field; one will be taken, and the other left. Just as above, with two in one bed and two women grinding at the mill, so here it is understood to be in one field. This signifies those who labor in the ministry of the Church, as in the field of God, to whom his farmer said: "You are God's field" (1 Corinthians 3:9). The one who will be taken is the one who does not adulterate the word of God (2 Corinthians 2:17), but speaks in Christ truthfully before God. The one who preaches Christ insincerely, but out of selfish motivation, will be left behind. I do not think there are other kinds of people within the Church, except these three pairs distinguished by being taken or left behind, although within each pair many diversities of pursuits and wills can be found, converging nevertheless towards harmony and unity. Therefore, the prophet Ezekiel saw three who were saved: Noah, Daniel, and Job, in whom preachers, those who live in continence, and those who are married, are represented. For Noah ruled the ark on the waters, and thus held the figure of those who govern. Daniel, devoted to abstinence even in the royal court, thus signified the life of those who live in continence. Job, placed in marriage and taking care of his own household, pleased God, and through him the order of good spouses is worthily represented.

[AD 397] Ambrose of Milan on Luke 17:37
“Answering, they said, ‘Where, Lord?’ ” The disciples asked this. The Lord predicted where they must flee, when they must stay, and of what they should be wary. He summarized everything in a general definition, saying, “Wherever the body will be, the eagles will be gathered together there.” Let us first speculate what the eagles are, so we may determine what the body is. The souls of the righteous are compared with eagles, because they seek the heights, leave the depths behind, and reportedly reach a great age. David also says to his soul, “Your youth will be renewed like that of an eagle.” If we understood the eagles, we cannot doubt concerning the body, particularly if we remember that Joseph received the body of Christ from Pilate. Does it not seem to you that the eagles around the body are Mary of Cleopas, Mary Magdalene, Mary, the mother of the Lord, and the assembly of the apostles around the Lord’s tomb?

[AD 397] Ambrose of Milan on Luke 17:37
He says concerning this body, “My flesh is meat indeed, and my blood is drink indeed.” Around this body, eagles fly on spiritual wings. Around the body, eagles believe that Jesus has come in the flesh, because every spirit that confesses that Jesus Christ has come in the flesh is of God. Where faith is, there is the sacrament and the dwelling place of holiness. The body is also the church, in which we are renewed in the spirit through the grace of baptism, and the frailties of old age are restored for ages of new life.

[AD 735] Bede on Luke 17:37
Answering they say to him: Where, Lord? He said to them: Where the body is, there the eagles will be gathered. Two Saviors were asked, where the good will be taken, and where the evil will be left, he said one thing, but left another to be understood. For by asserting that the saints will be with him, obviously the reprobates will be separated from his vision, and therefore they will be condemned nowhere else than with the devil, he implies. Therefore, wherever the Lord will be in body, the elect will be gathered there, who by imitating his passion and humility, are as if filled with his flesh, whose youth, like eagles, will be renewed in the resurrection (Psalm 103). It also harmonizes with the efforts of those who thirst to contemplate the glory of the supreme majesty with their whole mind, as the eagle surpasses other birds in flight and joyfully fixes its eyes on the sun's rays. It also fits that, for the protection of its nests, the eagle is accustomed to bring a resisting stone so that perhaps a serpent may not approach, or dare to touch its chicks or eggs. Because evidently every wise person, to defend his actions and thoughts from the incursion of the ancient serpent, needs to always keep in his heart that stone, cut from the mountain without hands, which laid waste to the devil's kingdom (Daniel 2), that is, the faith and love of Christ.