13 But go ye and learn what that meaneth, I will have mercy, and not sacrifice: for I am not come to call the righteous, but sinners to repentance.
[AD 367] Hilary of Poitiers on Matthew 9:9-13
It is a very fearful thing to be seized by death while the sins are yet unforgiven by Christ; for there is no way to the heavenly house for him whose sins have not been forgiven. But when this fear is removed, honour is rendered to God, who by His word has in this way given power to men, of forgiveness of sins, of resurrection of the body, and of return to Heaven.

Christ came for all; how is it then that He says He came not for the righteous? Were there those for whom it needed not that He should come? But no man is righteous by the law. He shows how empty their boast of justification, sacrifices being inadequate to salvation, mercy was necessary for all who were set under the Law.

[AD 407] John Chrysostom on Matthew 9:9-13
(Hom. xxx.) Having wrought this miracle, Christ would not abide in the same place, lest He should rouse the envy of the Jews. Let us also do thus, not obstinately opposing those who lay in wait for us. And as Jesus departed thence, (namely from the place in which He had done this miracle,) he saw a man sitting at the receipt of custom, Matthew by name.

Herein he shows the excellent power of Him that called him; while engaged in this dangerous office He rescued him from the midst of evil, as also Paul while he was yet mad against the Church. He saith unto him, Follow me. As you have seen the power of Him that calleth, so learn the obedience of him that is called; he neither refuses, nor requests to go home and inform his friends.

But why did He not call him at the same time with Peter and John and the others? Because he was then still in a hardened state, but after many miracles, and great fame of Christ, when He who knows the inmost secrets of the heart, perceived him more disposed to obedience, then He called him.

Why is it then that nothing is said of the rest of the Apostles how or when they were called, but only of Peter, Andrew, James, John, and Matthew? Because these were in the most alien and lowly stations, for nothing can be more disreputable than the office of Publican, nothing more abject than that of fisherman.

Matthew being honoured by the entrance of Jesus into his house, called together all that followed the same calling with himself; Behold many Publicans and sinners came and sat down with Jesus, and with his disciples.

Thus they came near to our Redeemer, and that not only to converse with Him, but to sit at meat with Him; for so not only by disputing, or healing, or convincing His enemies, but by eating with them, He oftentimes healed such as were ill-disposed, by this teaching us, that all times, and all actions, may be made means to our advantage. When the Pharisees saw this they were indignant; And the Pharisees beholding said to his disciples, Why eateth your Master with Publicans and sinners? It should be observed, that when the disciples seemed to be doing what was sinful, these same addressed Christ, Behold, thy disciples are doing what it is not allowed to do on the Sabbath. (Mat. 12:2.) Here they speak against Christ to His disciples, both being the part of malicious persons, seeking to detach the hearts of the disciple from the Master.

Having first spoken in accordance with common opinion, He now addresses them out of Scripture, saying, Go ye, and learn what that meaneth, I will have mercy and not sacrifice.

As much as to say; How do you accuse me for reforming sinners? Therefore in this you accuse God the Father also. For as He wills the amendment of sinners, even so also do I. And He shows that this that they blamed was not only not forbidden, but was even by the Law set above sacrifice; for He said not, I will have mercy as well as sacrifice, but chooses the one and rejects the other.

Whence we may suppose that He is speaking ironically, as when it is said, Behold now Adam is become as one of us. (Gen. 3:22.) For that there is none righteous on earth Paul shows, All have sinned, and need glory of God. (Rom. 3:23.) By this saying He also consoled those who were called; as though He had said, So far am I from abhorring sinners, that for their sakes only did I come.

[AD 420] Jerome on Matthew 9:9-13
The other Evangelists from respect to Matthew have not called him by his common name, but say here, Levi, for he had both names. Matthew himself, according to that Solomon says. The righteous man accuses himself, (Prov. 18:17.) calls himself both Matthew and Publican, to show the readers that none need despair of salvation who turn to better things, seeing he from a Publican became an Apostle.

Porphyry and the Emperor Julian insist from this account, that either the historian is to be charged with falsehood, or those who so readily followed the Saviour with haste and temerity; as if He called any without reason. They forget also the signs and wonders which had preceded, and which no doubt the Apostles had seen before they believed. Yea the brightness of effulgence of the hidden Godhead which beamed from His human countenance might attract them at first view. For if the loadstone can, as it is said, attract iron, how much more can the Lord of all creation draw to Himself whom He will!

But they had seen the Publican turning from sins to better things, and finding place of repentance, and on this account they do not despair of salvation.

For they do not come to Jesus while they remain in their original condition of sin, as the Pharisees and Scribes complain, but in penitence, as what follows proves; But Jesus hearing said, They that be whole need not a physician, but they that are sick.

This text from Osee (Hosea 6:6.) is directed against the Scribes and Pharisees, who, deeming themselves righteous, refused to keep company with Publicans and sinners.

[AD 430] Augustine of Hippo on Matthew 9:9-13
(De Cons. Ev. ii. 26.) Or, perhaps it is more probable that Matthew here turns back to relate something that he had omitted; and we may suppose Matthew to have been called before the sermon on the mount; for on the mount, as Luke relates, the twelve, whom He also named Apostles, were chosen.

(De. Cons. Ev. ii. 27.) Matthew has not said in whose house Jesus sat at meat (on this occasion), from which we might suppose, that this was not told in its proper order, but that what took place at some other time is inserted here as it happened to come into his mind; did not Mark and Luke who relate the same show that it was in Levi's, that is, in Matthew's house.

(ubi sup.) Luke seems to have related this a little differently; according to him the Pharisees say to the disciples, Why do ye eat and drink with Publicans and sinners? (Luke 5:30.) not unwilling that their Master should be understood to be involved in the same charge; insinuating it at once against Himself and His disciples. Therefore Matthew and Mark have related it as said to the disciples, because so it was as much an objection against their Master whom they followed and imitated. The sense therefore is one in all, and so much the better conveyed, as the words are changed while the substance continues the same.

(ubi sup.) Luke adds to repentance, which explains the sense; that none should suppose that sinners are loved by Christ because they are sinners; and this comparison of the sick shows what God means by calling sinners, as a physician does the sick to be saved from their iniquity as from a sickness: which is done by penitence.

[AD 533] Remigius of Rheims on Matthew 9:9-13
He esteems lightly human dangers which might accrue to him from his masters for leaving his accounts in disorder, but, he arose, and followed him. And because he relinquished earthly gain, therefore of right was he made the dispenser of the Lord's talents.

[AD 856] Rabanus Maurus on Matthew 9:9-13
(e Beda.) They are here in a twofold error; first, they esteemed themselves righteous, though in their pride they had departed far from righteousness; secondly, they charged with unrighteousness those who by recovering themselves from sin were drawing near to righteousness.

He calls Himself a physician, because by a wonderful kind of medicine He was wounded for our iniquities that He might heal the wound of our sin. By the whole, He means those who seeking to establish their own righteousness have not submitted to the true righteousness of God. By the sick, (Rom. 10:3.) He means those who, tied by the consciousness of their frailty, and seeing that they are not justified by the Law, submit themselves in penitence to the grace of God.

He therefore warns them, that by deeds of mercy they should seek for themselves the rewards of the mercy that is above, and, not overlooking the necessities of the poor, trust to please God by offering sacrifice. Wherefore, He says, Go; that is, from the rashness of foolish fault-finding to a more careful meditation of Holy Scripture, which highly commends mercy, and proposes to them as a guide His own example of mercy, saying, I came not to call the righteous but sinners.

In the call of Matthew and the Publicans is figured the faith of the Gentiles who first gaped after the gain of the world, and are now spiritually refreshed by the Lord; in the pride of the Pharisees, the jealousy of the Jews at the salvation of the Gentiles. Or, Matthew signifies the man intent on temporal gain; Jesus sees him, when He looks on him with the eyes of mercy. For Matthew is interpreted 'given,' Levi 'taken,' the penitent is taken out of the mass of the perishing, and by God's grace given to the Church. And Jesus saith unto him, Follow me, either by preaching, or by the admonition of Scripture, or by internal illumination.

[AD 1274] Glossa Ordinaria on Matthew 9:9-13
(ap. Anselm.) He says, sitting at the receipt of custom, that is, in the place where the tolls were collected. He was named Telonarius, from a Greek word signifying taxes.

(non occ.) Matthew places his calling among the miracles; for a great miracle it was, a Publican becoming an Apostle.

(ap. Anselm.) As a meet return for the heavenly mercy, Matthew prepared a great feast for Christ in his house, bestowing his temporal goods on Him of whom he looked to receive everlasting goods. It follows, And it came to pass as he sat at meat in the house.

(ap. Anselm.) The Publicans were they who were engaged in public business, which seldom or never can be carried on without sin. And a beautiful omen of the future, that he that was to be an Apostle and doctor of the Gentiles, at his first conversion draws after him a great multitude of sinners to salvation, already performing by his example what he was shortly to perform by word.

(ord.) Tertullian says that these must have been Gentiles, because Scripture says, There shall be no payer of tribute in Israel, as if Matthew were not a Jew. But the Lord did not sit down to meat with Gentiles, being more especially careful not to break the Law, as also He gave commandment to His disciples below, Go not into the way of the Gentiles.

(ap. Anselm.) Yet does not God contemn sacrifice, but sacrifice without mercy. But the Pharisees often offered sacrifices in the temple that they might seem to men to be righteous, but did not practise the deeds of mercy by which true righteousness is proved.

(ap. Anselm.) Or; Those who were righteous, as Nathanael and John the Baptist, were not to be invited to repentance. Or. I came not to call the righteous, that is, the feignedly righteous, those who boasted of their righteousness as the Pharisees, but those that owned themselves sinners.

[AD 420] Jerome on Matthew 9:12-13
The Lord went to the banquet of sinners that he might have an opportunity to teach and to offer spiritual food to his hosts. In effect, when he is mentioned as frequently going out to attend feasts, nothing is said other than what he did there and taught there. Thus, we see both the Lord’s humility in reaching out to sinners and the force of his teaching in converting penitents. What follows: “I desire mercy, and not sacrifice” and “I came not to call the righteous but sinners” (as he cites testimony from the prophet) challenged the scribes and Pharisees, who considered themselves righteous and shunned both publicans and sinners.

[AD 220] Tertullian on Matthew 9:13
He therefore said: "You wash the outside of the cup," that is, the flesh, "but you do not cleanse your inside part," that is, the soul; adding: "Did not He that made the outside," that is, the flesh, "also make the inward part," that is to say, the soul?-by which assertion He expressly declared that to the same God belongs the cleansing of a man's external and internal nature, both alike being in the power of Him who prefers mercy not only to man's washing, but even to sacrifice. For He subjoins the command: "Give what ye possess as alms, and all things shall be clean unto you.

[AD 220] Tertullian on Matthew 9:13
Saith He not, "He who hath fallen shall rise again, and he who hath been averted shall be converted? "He it is, indeed, who "would have mercy rather than sacrifices." The heavens, and the angels who are there, are glad at a man's repentance.

[AD 220] Tertullian on Matthew 9:13
"But," say they, "God is `good, 'and `most good, ' and `pitiful-hearted, 'and `a pitier, 'and `abundant in pitiful-heartedness, ' which He holds `dearer than all sacrifice, ' `not thinking the sinner's death of so much worth as his repentance', `a Saviour of all men, most of all of believers.

[AD 407] John Chrysostom on Matthew 9:13
After this, that He might not seem to put them that were bidden to shame, by saying, they that are sick; see how He makes up for it again, by reproving the others, and saying,

Go ye and learn what that means, I will have mercy, and not sacrifice. Matthew 9:13

Now this He said, to upbraid them with their ignorance of the Scriptures. Wherefore also He orders His discourse more sharply, not Himself in anger, far from it; but so as that the publicans might not be in utter perplexity.

And yet of course He might say, Did ye not mark, how I remitted the sins of the sick of the palsy, how I braced up his body? But He says no such thing, but argues with them first from men's common reasonings, and then from the Scriptures. For having said, They that be whole need not a physician, but they that are sick; and having covertly indicated that He Himself was the Physician; after that He said, Go ye and learn what that means, I will have mercy, and not sacrifice. Thus does Paul also: when he had first established his reasoning by illustrations from common things, and had said, Who feeds a flock, and eats not of the milk thereof? 1 Corinthians 9:7 then he brings in the Scriptures also, saying, It is written in the law of Moses, You shall not muzzle the ox that treads out the grain; and again, Even so has the Lord ordained, that they which preach the gospel should live of the gospel.

But to His disciples not so, but He puts them in mind of His signs, saying on this wise, Do ye not yet remember the five loaves of the five thousand, and how many baskets ye took up? Matthew 16:9 Not so however with these, but He reminds them of our common infirmity, and signifies them at any rate to be of the number of the infirm; who did not so much as know the Scriptures, but making light of the rest of virtue, laid all the stress on their sacrifices; which thing He is also earnestly intimating unto them, when He sets down in brief what had been affirmed by all the prophets, saying, Learn ye what that means, I will have mercy, and not sacrifice.

The fact is, He is signifying hereby that not He was transgressing the law, but they; as if He had said, Wherefore accuse me? Because I bring sinners to amendment? Why then ye must accuse the Father also for this. Much as He said also elsewhere, establishing this point: My Father works hitherto, and I work: John 5:17 so here again, Go ye and learn what that means, I will have mercy, and not sacrifice. For as this is His will, says Christ, so also mine. Do you see how the one is superfluous, the other necessary? For neither did He say, I will have mercy, and sacrifice, but, I will have mercy, and not sacrifice. That is, the one thing He allowed, the other He cast out; and proved that what they blamed, so far from being forbidden, was even ordained by the law, and more so than sacrifice; and He brings in the Old Testament, speaking words and ordaining laws in harmony with Himself.

Having then reproved them, both by common illustrations and by the Scriptures, He adds again,

I am not come to call righteous men, but sinners to repentance.

And this He says unto them in irony; as when He said, Behold, Adam has become as one of us; and again, If I were hungry, I would not tell you. For that no man on earth was righteous, Paul declared, saying, For all have sinned, and come short of the glory of God. Romans 3:23 And by this too the others were comforted, I mean, the guests. Why, I am so far, says He, from loathing sinners, that even for their sakes only am I come. Then, lest He should make them more careless, He staid not at the word sinners, but added, unto repentance. For I am not come that they should continue sinners, but that they should alter, and amend.

4. He then having stopped their mouths every way, as well from the Scriptures as from the natural consequence of things; and they having nothing to say, proved as they were obnoxious to the charges which they had brought against Him, and adversaries of the law and the Old Testament; they leave Him, and again transfer their accusation to the disciples.

And Luke indeed affirms that the Pharisees said it, but this evangelist, that it was the disciples of John; but it is likely that both said it. That is, they being, as might be expected, in utter perplexity, take the other sort with them; as they did afterwards with the Herodians likewise. Since in truth John's disciples were always disposed to be jealous of Him, and reasoned against Him: being then only humbled, when first John abode in the prison. They came at least then, and told Jesus; but afterwards they returned to their former envy.
[AD 420] Jerome on Matthew 9:13
(Verse 13) I desire mercy, and not sacrifice. For I did not come to call the righteous, but sinners. And the Lord was going to the feasts of sinners, so that He may have an opportunity to teach and provide spiritual food to His invited guests. Ultimately, as He was frequently described as going to feasts, it is only important what He did there, what He taught, in order to demonstrate both the humility of the Lord in going to sinners and the power of His teaching in the conversion of repentant sinners. But as for what follows: 'I desire mercy, and not sacrifice' (Hosea 6:6). And: 'I have not come to call the righteous, but sinners,' testifying of the prophet, he rebukes the scribes and Pharisees who consider themselves righteous, but reject the company of sinners and tax collectors.

[AD 1022] Symeon the New Theologian on Matthew 9:13
This therefore what Paul himself also knew when he said rightly:

Those whom God foreknew, the same He also predestined; and those whom He predestined, He also called; and those whom He called, the same He also glorified. [Romans 8:29-30]

It is not God’s foreknowledge of those who, by their free choice and zeal, will prevail which is the cause of their victory, just as, again, it is not His knowing beforehand who will fall and be vanquished which is responsible for their defeat. Instead, it is the zeal, deliberate choice, and courage of each of us which effects the victory. Our faithlessness and sloth, our irresolution and indolence, on the other hand, comprise our defeat and perdition. So, while reclining on our bed of worldly affection and love of pleasure, let us not say: “Those whom God fore-knew, them also He predestined,” without perceiving just what it is we are saying. Yes, indeed, He truly knew you beforehand as inattentive and disobedient and lazy, but this is certainly not because He ordered or foreordained it that you should have no power to repent yourself nor, if you will it, to get up and obey. You, though, when you say this, are clearly calling God a liar. While He says, “I came not to call the righteous but sinners to repentance” [Matthew 9:13], you, lazy and unwilling to turn around and repent of your evil, contradict Him, as it were, and call Him a liar Who never lies, when you make such excuses as these. “Those who are going to repent”, you say, “were predestined, but I am not one of them. So, let them repent therefore whom God clearly foreknew, and whom He also predestined.” O what a lack of feeling! O shamelessness of soul and worse than the demons themselves! When did anyone ever hear of one of them saying such a thing? Where was it ever heard that a demon blamed God for its own damnation? Let us then not blame the demons, for here there is a human soul which thinks up blasphemies even worse than theirs. - "Second Ethical Discourse"
[AD 1107] Theophylact of Ohrid on Matthew 9:13
He says, "I have not come now as judge but as physician, and for this reason I endure stench and filth." He also rebukes them for being ignorant when He says, "Go ye and learn." This means, "Since up to the present time you have not managed to learn, so at least from this time on go and learn that God prefers mercy towards sinners above any sacrifice" (Hosea 6:7). The words "I am not come to call the righteous" He spoke ironically. That is, "I have not come to call you who consider yourselves to be righteous, but I have come to call sinners. I do this, not so that they remain sinners, but in order for them to repent."