1 Now the LORD had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father's house, unto a land that I will shew thee: 2 And I will make of thee a great nation, and I will bless thee, and make thy name great; and thou shalt be a blessing: 3 And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed. 4 So Abram departed, as the LORD had spoken unto him; and Lot went with him: and Abram was seventy and five years old when he departed out of Haran. 5 And Abram took Sarai his wife, and Lot his brother's son, and all their substance that they had gathered, and the souls that they had gotten in Haran; and they went forth to go into the land of Canaan; and into the land of Canaan they came. 6 And Abram passed through the land unto the place of Sichem, unto the plain of Moreh. And the Canaanite was then in the land. 7 And the LORD appeared unto Abram, and said, Unto thy seed will I give this land: and there builded he an altar unto the LORD, who appeared unto him. 8 And he removed from thence unto a mountain on the east of Bethel, and pitched his tent, having Bethel on the west, and Hai on the east: and there he builded an altar unto the LORD, and called upon the name of the LORD. 9 And Abram journeyed, going on still toward the south. 10 And there was a famine in the land: and Abram went down into Egypt to sojourn there; for the famine was grievous in the land. 11 And it came to pass, when he was come near to enter into Egypt, that he said unto Sarai his wife, Behold now, I know that thou art a fair woman to look upon: 12 Therefore it shall come to pass, when the Egyptians shall see thee, that they shall say, This is his wife: and they will kill me, but they will save thee alive. 13 Say, I pray thee, thou art my sister: that it may be well with me for thy sake; and my soul shall live because of thee. 14 And it came to pass, that, when Abram was come into Egypt, the Egyptians beheld the woman that she was very fair. 15 The princes also of Pharaoh saw her, and commended her before Pharaoh: and the woman was taken into Pharaoh's house. 16 And he entreated Abram well for her sake: and he had sheep, and oxen, and he asses, and menservants, and maidservants, and she asses, and camels. 17 And the LORD plagued Pharaoh and his house with great plagues because of Sarai Abram's wife. 18 And Pharaoh called Abram, and said, What is this that thou hast done unto me? why didst thou not tell me that she was thy wife? 19 Why saidst thou, She is my sister? so I might have taken her to me to wife: now therefore behold thy wife, take her, and go thy way. 20 And Pharaoh commanded his men concerning him: and they sent him away, and his wife, and all that he had.
[AD 62] Acts on Genesis 12:1
Then said the high priest, Are these things so? And he said, Men, brethren, and fathers, hearken; The God of glory appeared unto our father Abraham, when he was in Mesopotamia, before he dwelt in Charran, And said unto him, Get thee out of thy country, and from thy kindred, and come into the land which I shall show thee. [Genesis 12:1] Then came he out of the land of the Chaldaeans, and dwelt in Charran: and from thence, when his father was dead, he removed him into this land, wherein ye now dwell. And he gave him none inheritance in it, no, not so much as to set his foot on: yet he promised that he would give it to him for a possession, and to his seed after him, when as yet he had no child. And God spake on this wise, That his seed should sojourn in a strange land; and that they should bring them into bondage, and entreat them evil four hundred years. And the nation to whom they shall be in bondage will I judge, said God: and after that shall they come forth, and serve me in this place.
[AD 99] Clement of Rome on Genesis 12:1-3
Abraham, styled "the friend," [Isaiah 41:8] was found faithful, inasmuch as he rendered obedience to the words of God. He, in the exercise of obedience, went out from his own country, and from his kindred, and from his father's house, in order that, by forsaking a small territory, and a weak family, and an insignificant house, he might inherit the promises of God. For God said to him, "Get you out from your country, and from your kindred, and from your father's house, into the land which I shall show you. And I will make you a great nation, and will bless you, and make your name great, and you shall be blessed. And I will bless them that bless you, and curse them that curse you; and in you shall all the families of the earth be blessed." [Genesis 12:1-3] And again, on his departing from Lot, God said to him, "Lift up your eyes, and look from the place where you now are, northward, and southward, and eastward, and westward; for all the land which you see, to you will I give it, and to your seed forever. And I will make your seed as the dust of the earth, [so that] if a man can number the dust of the earth, then shall your seed also be numbered." [Genesis 13:14-16] And again [the Scripture] says, "God brought forth Abram, and spoke unto him, Look up now to heaven, and count the stars if you are able to number them; so shall your seed be. And Abram believed God, and it was counted to him for righteousness." [Genesis 15:5-6] On account of his faith and hospitality, a son was given him in his old age; and in the exercise of obedience, he offered him as a sacrifice to God on one of the mountains which He showed him. [Genesis 22:9]

[AD 356] Anthony the Great on Genesis 12:1
Some were reached by the Word of God through the law of promise and the discernment of the good inherent in them from their first formation. They did not hesitate but followed it readily as did Abraham, our father. Since he offered himself in love through the law of promise, God appeared to him, saying, “Go from your country and your kindred and from your father’s house to the land that I will show you.” And he went without hesitating at all but being ready for his calling. This is the model for the beginning of this way of life. It still persists in those who follow this pattern. Wherever and whenever souls endure and bow to it they easily attain the virtues, since their hearts are ready to be guided by the Spirit of God.

[AD 397] Ambrose of Milan on Genesis 12:1
Abraham represents the mind. In fact Abraham signifies passage. Therefore, in order that the mind, which in Adam had allowed itself to run to pleasure and to bodily attractions, should turn toward the ideal form of virtue, a wise man has been proposed to us as an example to imitate. Actually Abraham in Hebrew signifies “father,” in the sense that the mind, with the authority, the judgment and the solicitude of a father, governs the entire person. This mind then was in Haran, that is, in caverns, subject to the different passions. For this reason it is told, “Go from your country,” that is, from your body. From this land went forth the one whose homeland is in the heavens.

[AD 398] Didymus the Blind on Genesis 12:1
It is not by chance that God orders Abraham to leave his land and his relatives but because he sees in him something that makes him worthy of being the object of divine concern, that is, his faith in God. But it was not fitting that the one who had faith in God should remain among perverse people—the father of Abraham was in fact an idolater—because the company of the wicked often does harm to zealous people, especially to those whose zeal is new. That is why the Savior also proclaims, “If anyone wishes to follow me and does not hate his father, his brothers, his sisters, and even his wife and children, he cannot be my disciple.” The Lord did not say that in order to provoke hatred of one’s relatives, but if one of them becomes an obstacle to virtue, it is necessary to hate him for virtue’s sake. That is what the apostles did, who said, “Look, we have left everything in order to follow you.” Such is the order given now to the patriarch, and God tells him that he will show him a land in which to live, that he will make of him a great nation, that he will bless and magnify his name.

[AD 430] Augustine of Hippo on Genesis 12:1
The right thing to do, brothers and sisters, is to believe God before he pays up anything, because just as he cannot possibly lie, so he cannot deceive. For he is God. That’s how our ancestors believed him. That’s how Abraham believed him. There’s a faith for you that really deserves to be admired and made widely known. He had received nothing from him, and he believed his promise. We do not yet believe him, though we have already received so much. Was Abraham ever in a position to say to him, “I will believe you, because you promised me that and paid up”? No, he believed from the very first command given, without having received anything else at all. “Go out from your country,” he was told, “and from your kindred, and go into a country which I will give you.” And he believed straightaway, and [God] didn’t give him that country but kept it for his seed.

[AD 542] Caesarius of Arles on Genesis 12:1
When the sacred lesson was read just now, we heard the Lord say to blessed Abraham, “Leave your country, your kinsfolk and your father’s house.” Now everything that was written in the Old Testament, dearly beloved, provided a type and image of the New Testament. As the apostle says, “Now all these things happened to them as a type, and they were written for our correction, upon whom the final age of the world has come.” Therefore, if what happened corporally in Abraham was written for us, we will see it fulfilled spiritually in us if we live piously and justly. “Leave your country,” the Lord said, “your kinsfolk and your father’s house.” We believe and perceive all these things fulfilled in us, brothers, through the sacrament of baptism. Our land is our body; we go forth properly from our land if we abandon our carnal habits to follow the footsteps of Christ. Does not one seem to you happily to leave his land, that is, himself, if from being proud he becomes humble; from irascible, patient; from dissolute, chaste; from avaricious, generous; from envious, kind; from cruel, gentle? Truly, brothers, one who is changed thus out of love for God happily leaves his own land. Finally, even in private conversation, if one who is wicked suddenly begins to perform good works we are inclined to speak thus of him: He has gone out of himself. Indeed, he is properly said to have gone out of himself if he rejects his vices and delights in virtue. “Leave your country,” says the Lord. Our country, that is, our body, was the land of the dying before baptism, but through baptism it has become the land of the living. It is the very land of which the psalmist relates: “I believe that I shall see the bounty of the Lord in the land of the living.” Through baptism, as I said, we have become the land of the living and not of the dying, that is, of the virtues and not of the vices. However, this is true only if after receiving baptism we do not return to the slough of vices, if when we have become the land of the living we do not perform the blameworthy, wicked deeds of death. “And come,” says the Lord, “into the land which I will show you.” It is certain that then we will come with joy to the land that God shows us if with his help we first repel sins and vices from our land, that is, from our body.

[AD 542] Caesarius of Arles on Genesis 12:1
“Leave your kinsfolk.” Our kinsfolk is understood as those vices and sins that are in part born with us in some way and are increased and nourished after infancy by our bad acts. Therefore we leave our kinsfolk when through the grace of baptism we are emptied of all sins and vices. However, this is true only if later we strive as much as we can with God’s help to expel vice and to be filled with virtues. If after being freed from all evil through baptism we are willing to be slothful and idle, I fear that what is written in the Gospel may be fulfilled in us: “When the unclean spirit has gone out of a man, he roams through dry places in search of rest and finds none. If after he returns he finds his house unoccupied, he takes with him seven other spirits more evil than himself; and the last state of that man becomes worse than the first.” Therefore let us so go forth from our kinsfolk, that is, from our sins and vices, that we may never again wish to return to them as a dog to its vomit.

[AD 542] Caesarius of Arles on Genesis 12:1
“Leave your father’s house.” This we ought to accept in a spiritual manner, dearly beloved. The devil was our father before the grace of Christ; of him the Lord spoke in the Gospel when he rebuked the Jews: “The father from whom you are is the devil, and the desires of your father it is your will to do.” He said the devil was the father of humanity, not because of birth from him but because of imitation of his wickedness. Indeed, they could not have been born of him, but they did want to imitate him. This fact that the devil was our first father the psalmist relates in the person of God speaking to the church: “Hear, O daughter, and see; turn your ear, forget your people and your father’s house.”

[AD 735] Bede on Genesis 12:1-3
And the Lord said to Abram, "Go out from your land, and from your kindred, and from your father's house to the land that I will show you. And I will make you into a great nation, and I will bless you, and I will make your name great, and you will be a blessing." For, speaking distinctly, the Lord mentions land, kindred, and father's house. The land of Abram must be understood as the region of the Chaldeans from which he had already departed: his kindred, the family of his brother Nahor, whom he had already left behind: the father's house, in which he was then dwelling in Haran. How then is it that he is now commanded to go out from his father's house as well as from the land and kindred from which he already seemed to have come forth? Unless perhaps it should be understood that he had left his land and his kindred with his parent with the intention, as we have previously mentioned, to return to it after reconciling with the Chaldeans in the following age: he is now commanded by the Lord to turn his mind away from the purpose of returning to Chaldea, and to take away his mind and body from the habitation of Mesopotamia as well. Leaving behind the land in which the city of pride was made, and confused by the judgment of the Lord, he was to come into the land in which he would receive the grace of the heavenly blessing and would create a new and better progeny by merit of his faith and obedience. For what he says, "And I will make you into a great nation," properly pertains to the people of Israel. For concerning the generation of other nations that were likewise to arise from him—namely the Ishmaelites, Edomites, and the peoples from Keturah, his second wife after Sarah—he says in subsequent words to him, "I will make you grow exceedingly, and I will place you among nations, and in you all the families of the earth will be blessed." This is a promise of blessing greater and far superior to the former. That one indeed is earthly, this one is heavenly: because the former signifies the propagation of carnal Israel, this one of the spiritual. The former pertains to the people who were born from him according to the flesh; this one to those who are saved in Christ from all the families of the earth, among whom are indeed those who are born from him according to the flesh and also wish to imitate his faith's piety. To all these, the Apostle Paul says, "And if you belong to Christ, then you are Abraham's seed" (Gal. 3:19). Therefore, what he says, "And in you all the families of the earth will be blessed" is as if he were saying, "And in your seed all the families of the earth will be blessed." For, to speak in the words of the Apostle, Mary was already in the loins of Abraham at that time, from whom Christ was to be born, when these things were said to him. And the wondrous disposition of heavenly severity and piety: for men gathering for a proud work deserved to be divided from one another through different languages and kinships. But leaving that province alone and willingly going into exile at the command of the Lord, he heard that all the nations divided into various provinces and languages would be gathered in him by a common blessing. Note indeed that although the world's third age is usually computed from the birth of Abraham, yet by this special oracle of the Lord to Abraham, the beginnings of the third age are consecrated according to the sufficiency of the matters themselves. For at that time, the holy seed was separated from the nations, and the Savior of all nations, who was to be born from it, was foretold. Until this time, all the faithful and righteous used to make use of that knowledge of moral life which they either knew naturally by guidance or drew originally from the doctrine of their parents. But now the knowledge also of the coming Savior in the flesh, in whom blessing and salvation were to come to all the holy ones, both those who would precede his incarnation by being born earlier and to us who believe we can be saved later by the name of the same Lord Jesus, as Peter says, in the same way as they.

[AD 398] Didymus the Blind on Genesis 12:2
As for the promise to make of him “a great nation,” is it necessary to give a meaning other than the literal one? Because it is clear that it was realized in its historical sense. But, having become a people, it is truly great when it is adorned with virtues. And it is manifest that when the progress becomes more important in the soul, there is established in it a grandeur which is no longer earthly but heavenly. And this soul is a blessing that is not simply offered but realized, because the name is made great and becomes celebrated because it is accompanied by virtue and by that beauty which confers a spiritual blessing. It is worth more to have a good name than to have riches.

[AD 407] John Chrysostom on Genesis 12:2
The scope of the promise is extraordinary: “I will make you a great nation; I will bless you and magnify your name.” Not only will I place you at the head of a great nation and cause your name to be great, but as well, “I will bless you, and you will be blessed.” I will favor you with so much blessing, he says, that it will last for all time. “You will be blessed” to such an extent that everyone will be anxious to thrust themselves into your company in preference to the highest honor. See how God right from the beginning foretold to him the honor he would later confer upon him. “I will make you a great nation,” he said; “I will magnify your name; I will bless you, and you will be blessed.” Hence the Jews too found in the patriarch grounds for self-importance and endeavored to establish their kinship with him in the words “We are the children of Abraham.” For you to learn, however, that on the basis of their evil ways they are in fact unworthy of such kinship, Christ says to them, “If you were children of Abraham, you would do the works of Abraham.” John too, the son of Zechariah, when those anxious to be baptized flocked to the Jordan, said to them, “Brood of vipers, who warned you to flee from the wrath to come? Bear fruit that benefits repentance, and don’t presume to say, ‘We have Abraham for our father.’ I tell you, after all, that God can raise up children to Abraham even from these stones.” Do you see how great his name was in everyone’s estimation? For the time being, however, before the sequel the just man’s God-fearing qualities are demonstrated in the way he believed the words coming from God and accepted without demur everything, difficult though it seemed.

[AD 420] Jerome on Genesis 12:4
(Chapter 12, Verse 4) Now Abram was seventy-five years old when he departed from Haran. There arises an unsolvable question: for if Terah, the father of Abram, when he was still in the land of the Chaldeans, at seventy years old begot Abram, and afterwards died in Haran at the age of two hundred and five: how is it now mentioned that Abram, after the death of Terah, when departing from Haran, was seventy-five years old? Since from the birth of Abram until the death of his father, it is said that one hundred and thirty-five years passed. Therefore, that tradition of the Hebrews, which we mentioned above, is true: that Thara went out with his sons from the fire of the Chaldeans, and that Abram, surrounded by the Babylonian fire, was liberated by the help of God because he refused to worship it; and from that time, the days of his life, and the reckoning of his age, are considered from when he confessed the Lord, rejecting the idols of the Chaldeans. However, it is possible that because the Scripture left it uncertain, a few years ago Thara set out from Chaldea and came to Haran, where he died. Certainly, after the persecution, he came to Haran and stayed there for a longer time. Therefore, if anyone is opposed to this explanation, they will seek another solution and then rightfully reject what we have said.

[AD 735] Bede on Genesis 12:4
So Abram departed as the Lord had directed him, and Lot went with him. Abram was seventy-five years old when he left Haran. It is clear from this number of Abraham's years that he left Haran while his father was still alive, as was explained above. There is no doubt that the number seventy-five is mystical, since in it he received the promise of divine blessing and left Isaac, the heir of the same blessing, when he was dying. To speak briefly, seventy, because it is seven times ten, represents the perfection of good actions, when we fulfill the commandments of the Decalogue through the grace of the Holy Spirit, which the prophet describes as sevenfold. To these are added five, so that in all the senses of our body, we may fulfill the same divine commandments with the help of the Spirit’s grace. Abram was seventy-five years old when he left Haran at the command or promise of the Lord and entered the Promised Land; to show that he himself, through the help of the Spirit, having anathematized the errors of Babylonian conduct, would keep God’s commandments; and this in all that he did with his body, whether living, hearing, tasting, or touching, so that there might be nothing in his body that was not enlightened and aided by the gift of the Spirit to obey the heavenly commands. And he marked that all his heirs of the promise should live in a similar manner. It is also to be imitated by all the sons of the promise, among whom we are, that he was ordered to leave his land, his kindred, and his father’s house. For we depart from our land when we renounce the pleasures of the flesh; from our kindred, when we strive to strip ourselves of all the vices with which we were born, as far as is possible for humans; from our father’s house, when we contend to leave the world itself with its prince the devil out of love for heavenly life. For we are all born into the world as sons of the devil because of the guilt of original transgression; but through the grace of regeneration, we belong to the seed of Abraham and become the sons of God, as our Father in heaven says to us, that is, to His Church: "Listen, daughter, and see, and incline your ear, forget your people and your father’s house" (Psalms 45:10). Thus it is well that Haran, from which Abraham departed, is interpreted as Wrath. Canaan, to whose land he was invited, is called the Changed or Merchant. Therefore, not only did Abraham and his brother Lot leave Haran to go to the land of Canaan, but all the elect who are born through the laver of regeneration certainly depart from Haran and come to the land of Canaan; and all the chosen, with the wrath of original sin repudiated in the state of their life and having abandoned the habit of vices, apply themselves to virtues and labor in the most blessed commerce of temporal works to attain eternal rewards; they spurn earthly riches to receive heavenly ones; they disdain the joys of human reign to deserve a share in the kingdom of God. For this is the land that the Lord promised to show His followers: because it cannot be discovered by human wisdom how to walk the way of good deeds, but His guidance must be sought in all things, as the Psalmist says: "You held my right hand, you guided me according to your will, and took me with glory" (Psalms 73:23-24).

[AD 735] Bede on Genesis 12:5
Therefore, Sarai took his wife, and Lot his brother's son, and all the substance that they had gathered, and the souls that they had made in Haran; and they went forth to go into the land of Canaan. The phrase "the souls that they had made" is used to mean the children they had begotten. For in the Scriptures, a man is sometimes indicated by the name of the soul alone, sometimes by the name of the flesh alone. By "soul," as it is said: "The soul that sinneth, it shall die" (Ezekiel 18:20); by "flesh," as in the Psalm: "Unto thee shall all flesh come" (Psalm 65:3), since neither flesh without the soul can come to God, nor can the soul sin without the flesh, but the whole man is signified by one part. Nor do those who believe that as the flesh is generated from flesh, so the soul is generated from the soul have any support from this sentiment: for by the term "soul," as we have said, the whole man is understood. However, that they made souls, that is, procreated souls in Haran, should be understood not of Abraham and Lot, but of their household and servants: for the sacred history following this testifies that the patriarchs themselves still remained without children.

[AD 735] Bede on Genesis 12:6
And when they had come to it, Abram passed through the land to the place at Shechem, to the oak of Moreh. At that time the Canaanites were in the land. Then the Lord appeared to Abram and said, “To your offspring I will give this land.” So he built an altar there to the Lord, who had appeared to him. It is read above that while Abram was still living in Haran, the Lord spoke to him, promising manifold blessings, commanding him to leave there and come into the land that He would show him. When he did this and willingly obeyed the divine commands, he was immediately deemed worthy of greater grace from God, so that not only would he enjoy His speech, as before, but also merit His vision. When, through the same divine vision and speech, he knew that this was the land promised to him for possession, he quickly, as a man devoted to God, built an altar there to dedicate and consecrate it for offering sacrifices to Him. But because sacred history is full of mystical types, it should be noted that the Lord’s appearance and the erection of the altar are recorded as having taken place at Shechem and at the oak of Moreh. What illustrious valley, if not humility, is figuratively understood? When called by the Lord from the labors and burdens of this world, we must have humility as the first among virtues, as He Himself says: "Learn from me, for I am gentle and lowly in heart, and you will find rest for your souls. For my yoke is easy, and my burden is light" (Matthew 11:29). The place Shechem mystically fits this bearing of the burden because it translates into shoulders in Latin, for it is necessary that with the humility of mind we take up the burdens of good works to be carried. When we diligently strive to do this, we will immediately merit the grace of the Lord's visitation and consolation, so that we may gradually be able to ascend to higher degrees of virtues. Hence rightly, about the advancements of Abram’s journeys, which signify the progression of good works, it is added:

[AD 258] Novatian on Genesis 12:7
Please note that the same Moses says in another passage that God appeared to Abraham. Yet the same Moses hears from God that no man can see God and live. If God cannot be seen, how did God appear? If he appeared, how is it that he cannot be seen? For John says similarly, “No one has ever seen God.” And the apostle Paul says, “Whom no man has seen or can see.” But certainly Scripture does not lie; therefore God was really seen. Accordingly this can only mean that it was not the Father, who never has been seen, that was seen, but the Son, who willed to descend and to be seen, for the simple reason that he has descended. In fact, he is the “image of the invisible God,” that our limited human nature and frailty might in time grow accustomed to see God the Father in him who is the Image of God, that is, in the Son of God. Gradually and by degrees, human frailty had to be strengthened by means of the Image for the glory of being able one day to see God the Father.

[AD 397] Ambrose of Milan on Genesis 12:8
Where there is Bethel, that is, the house of God, there is also the altar. Where there is the altar, there is also the calling on the name of God. It is not by chance that he made such great progress. He hoped in the help of God. The athlete of God exercised and strengthened himself in adversity. He went into the desert.

[AD 735] Bede on Genesis 12:8
And thence, crossing to the mountain that was east of Bethel, he pitched his tent there, having Bethel on the west and Ai on the east. He also built an altar there to the Lord and called on His name. Indeed, after the valley, he ascended to the mountains, for through the humility of self-despair we must ascend to the loftiness of devout action dedicated to God. And there too, as in the valley, he built an altar to the Lord and called on His name, because both to be humbled in the sight of the Lord and to perform sublime works of virtue are gifts of divine favor; for both we must offer praises of thanks to Him. And because there should always be progress in virtues towards higher things, it is aptly added:

[AD 420] Jerome on Genesis 12:9
(Verse 9) And Abram, setting out, went into the desert; and famine came upon the land. And in the present and in many other places, for desert, it is written in Hebrew. Therefore, we should take note of this.

[AD 735] Bede on Genesis 12:9
And Abram journeyed, going and still progressing towards the south. The southern region, from where the sun is accustomed to shine more ardently upon the world, mystically demonstrates the fervor of love by which the hearts of the elect, lest they become sluggish in the appetite and desires for lowly things, are always inflamed by the Sun of righteousness shining from above, namely Christ. Thus Abraham, desiring to see and know the land he was to receive as a possession, indeed proceeded in human curiosity, going and still progressing towards the south: but in mystical significance, he showed that he, ascending from strength to strength, and like all the elect, always made progress in divine love until he is granted to see the God of gods in Zion.

[AD 398] Didymus the Blind on Genesis 12:10
The content on the literal level is clear. As for the spiritual meaning, it is this. Those who are wise in God are above the earth, since they are not of the earth. A famine then came over the earth, because for those who are concerned about earthly things, there often occurs a famine in this sense, that they no longer hear the word of the Lord. Then, if they are worthy of it, the Word is given back to them one day.Thus Abraham went to Egypt to “sojourn” there, not to dwell there, because he had sympathy for the victims of the famine. Likewise Daniel and his companions did not come to Babylon because of sins they had committed but to aid the people who had been deported there on account of their own sins.

[AD 735] Bede on Genesis 12:10
Now there was a famine in the land, and Abram went down to Egypt to sojourn there. After receiving the promises of blessing, after entering the land of promise, after building an altar to the Lord there, after invoking His name, Abraham is tested by famine, and such a great famine that he left the land which he had received in promise as soon as he saw and visited it. But Isaac and Jacob, and his sons, also left the same land of promise, driven by similar necessity. As the Psalmist sings, they passed from nation to nation and from one kingdom to another people (Psalm 105:13). This was believed to have happened not by chance, but by divine providence, so that both they and all the heirs of the same promise would understand that they received the gifts of divine blessing in such a way that in this life they would endure labor and temporal affliction, but in the future, they would expect everlasting rest and happiness. This was also to illustrate that the land of Canaan was promised to Abraham and his seed in such a way that it signified more the inheritance of the heavenly fatherland, of which it is written: "The righteous shall inherit the land and dwell upon it forever" (Psalm 37:29). This is clearly not said about the land of this world, which is common to both the righteous and the wicked, since it is narrated that it will be possessed forever by the righteous alone. Therefore, the land of Canaan is promised to Abraham and his seed, and after the long toil of Egyptian servitude, it is restored by Joshua as a leader, to mystically suggest that the heavenly fatherland promised to us will be restored through Jesus Christ our Lord after the affliction of present exile. But even in that land of Canaan, the children of the promise never ceased laboring or fighting against enemies, so they would understand, as we have said, that they should seek another fatherland beyond this one, where they will truly enjoy heavenly blessing and eternal rest. This divine providence also aligns with the fact that Abraham, while sojourning in Egypt, was endangered because of his wife; but he was helped by divine protection so that he would not be harmed, thus making it clear that not only general worldly evils, such as famine, disease, and captivity, would just men endure along with the reprobates in this life, but they would also suffer specific tribulations from the reprobates themselves, from which they would receive rewards in the future unknown to the reprobates. It follows.

[AD 373] Ephrem the Syrian on Genesis 12:11-15
Abraham gave a human reason as human beings do. Nevertheless, because Sarah thought it was Abraham who was sterile, she was taken to the palace. [This happened] first, so that she might learn that it was she who was barren; second, so that her love for her husband might be seen, for she did not exchange [her husband] for a king while she was a sojourner; and [last], so that the mystery of her descendants might be prefigured in her. Just as she had no love for the kingdom of Egypt, they would not love the idols, the garlic or the onions of Egypt. The entire house of Pharaoh was struck down by Sarah’s deliverance. So too would all Egypt be struck down by the deliverance of her descendants.

[AD 397] Ambrose of Milan on Genesis 12:11-15
There came a famine, and so he went to Egypt. He knew that in Egypt the dissipation of youth was widespread, characterized by lust, impudent desires and unrestrained passions. He understood that among such men the modesty of his wife would be defenseless and that her beauty would be a danger for him. So he told his wife to say that she was his sister. By this we are taught that it is not so much beauty that one should seek in a wife, for this often leads to the death of the husband. In fact, it is not so much the beauty of the wife but her virtue and her seriousness that make a husband happy. Whoever desires the happiness of marriage should look not for a wealthy woman, who will not be held in check by the obligations of marriage. One looks not for one ornamented with jewels but with good manners. The wife who is conscious of being of a higher social level generally humiliates her husband. These things have a close connection with pride. Sarah was not richer in goods. She was not of more noble origin. Therefore she did not think her husband inferior but loved him as one of equal dignity. She was not held back by riches, by her parents, by her relatives, but she followed her husband wherever he went. She went to a foreign land; she declared herself to be his sister. She was willing, if necessary, to endanger her own modesty rather than the security of her husband. To safeguard her husband, she lied, saying that she was his sister out of fear that those who were seeking to ensnare her modesty would have killed him as a rival and defender of his wife. The Egyptians, in fact, as soon as they saw her, struck by her uncommon beauty, presented her to the king and treated Abraham with respect, honoring him as the brother of her who was pleasing to the king.

[AD 398] Didymus the Blind on Genesis 12:11-15
On the literal level Abraham made an intelligent compromise with the lustfulness of the Egyptians, being certain that God, who had made him leave his own country, would watch over his marriage. He suggested to his wife that she tell them that she was his sister, because if they were told that and only that at the beginning, they would not have the idea that she was his wife, and by that means he would deceive them. In fact, marriage between brother and sister was practiced in Egypt and in his own country, as he said later, “She really is my sister.” It was therefore a clever strategy to suggest to Sarah to say only that at first. As the laws against adultery were probably respected among the Egyptians, Abraham thought in fact that they would kill him in order not to be considered as adulterers.So much for the literal level. As for the spiritual meaning, those who pass from virtue to vice are said to descend into Egypt. One finds often in the Scriptures, “Woe to those who descend into Egypt.” Here it does not say “he descended” but “he entered.” His descent is an entrance, because every zealous man condescends to those who fall without falling with them … to deliver them from their fall. Just as one becomes Jewish for the sake of the Jews without being a Jew, and ungodly for the sake of the ungodly without being ungodly, so one comes into Egypt without living as an Egyptian.
The others then descend there, but Abraham enters there. It is not their vice that leads him there but the fulfillment of a divine plan. The virtuous man enters into Egypt in the sense that he makes use of foreign culture to draw something useful from it, as Paul the blessed apostle did in citing the verse of Aratus, “for we are indeed his offspring,” in order to behave accordingly, and “to an unknown god” or “Cretans are always liars.” He urges us in the same way to “take every thought captive” in order to put it at the service of Christ.
Having entered Egypt, as we have explained it, he imposes restrictions on virtue that she should not say that she is his wife, because the zealous and perfect man does not say that virtue has become his exclusive privilege in order not to provoke the jealousy of those who do not have it. He says that she is his sister, giving himself thus a secondary rank with regard to the union that he enjoys with her, in order to put himself within range of the weak and to inspire in them the desire to receive her as something that is at the disposition of all in common. The fact is that often, when we want to direct the attention of someone to a teaching, we begin by putting it in language common with him, for example the teaching about providence, so that afterward he may receive it personally. The evangelical teaching is thus the gracious spouse of the zealous man, but he does not keep her for himself, even if he speaks of her only “among the mature.” He places her in common with all, like Paul, who said, “I wish that all were as I myself am,” because, having become such, they might know that this culture is the spouse of the perfect man. “Wisdom begets discernment to a man”; and as for me, says the perfect, “I became enamored of her beauty,” that of wisdom, it is understood. But the wise man wishes to share with all that which is his, because in this way they will not become jealous.

[AD 430] Augustine of Hippo on Genesis 12:11-15
Having built an altar there and called upon God, Abraham proceeded thence and dwelt in the desert and was compelled by pressure of famine to go on into Egypt. There he called his wife his sister, and he told no lie. For she was this also, because she was near of blood; just as Lot, on account of the same nearness, being his brother’s son, is called his brother. Now he did not deny that she was his wife but held his peace about it, committing to God the defense of his wife’s chastity and providing as a man against human wiles. If he had not provided against the danger as much as he could, he would have been tempting God rather than trusting in him. We have said enough about this matter against the calumnies of Faustus the Manichaean. At last what Abraham had expected the Lord to do took place. For Pharaoh, king of Egypt, who had taken her to him as his wife, restored her to her husband when faced with severe plague. And far be it from us to believe that she was defiled by lying with another. It is much more credible that, by these great afflictions, Pharaoh was not permitted to do this.

[AD 735] Bede on Genesis 12:11-18
And when he was about to enter Egypt, he said to Sarai his wife: "I know that you are a beautiful woman, and that when the Egyptians see you, they will say that you are his wife, and they will kill me and keep you alive: therefore, please say that you are my sister, so that it may go well with me because of you," and so on until it was said, "The Lord, however, struck Pharaoh with great plagues and his house because of Sarai, Abram's wife; and Pharaoh called Abram and said to him: What is this you have done to me? Why did you not tell me that she was your wife? Why did you say she was your sister, so that I took her as my wife?" Abraham did not lie because he said his wife was his sister, for she was also that, being a close relative; likewise Lot was called his brother, though he was his brother's son. Thus, he concealed that she was his wife but did not deny that she was his sister, entrusting the defense of his wife’s chastity to God and avoiding human deceit as a man, since if he did not avoid danger as much as he could, he would tempt God rather than hope in Him. Indeed, what Abraham trusted in the Lord came to pass, for Pharaoh, the king of Egypt, who had taken her as his wife, being gravely afflicted, returned her to her husband. It is therefore far from us to believe that she was defiled by another’s embrace, for it is much more credible that Pharaoh was not permitted to do this because of great afflictions. It can also be said that, according to the book of Esther, wherever any woman who pleased the king was prepared for him, she was anointed with myrrh oil for six months, and for another six months used various ointments and perfumes, and only then entered the king. It could be that after Sarai pleased the king, and while she was being prepared to enter him for a year, and Pharaoh had given many gifts to Abraham, and Pharaoh was afterwards struck by the Lord, she still remained untouched by his embrace.

[AD 420] Jerome on Genesis 12:15-16
(Vs. 15 and 16) And the princes of Pharaoh saw her, and they praised her to Pharaoh, and she was brought into Pharaoh's house. And Abram benefitted because of her, and he had sheep, and cattle, and donkeys, and male and female servants, and mules and camels. Although the body of holy women does not see blemish, but the will does, and Sarai can be excused because, in the time of famine, she could not resist being alone in foreign places, with her husband conniving; however, the ugly necessity can also be excused in another way: that according to the book of Esther, whatever pleased the king among the women, for six months she was anointed with myrtle oil, and for six months she was in various perfumes and women's treatments, and only then she entered the king's presence. And so it happened that Sarai, after pleasing the king, while she was being prepared for a year to enter the king's presence, and Pharaoh gave many gifts to Abraham, and Pharaoh later was struck by the Lord, she still remained untouched by his concubinage.

[AD 398] Didymus the Blind on Genesis 12:16
The intelligent strategy of the patriarch did not fail. They did not seek to do him harm. Moreover, a way out of it presented itself so that the marriage of the holy man would not be violated, because the Egyptians did not fling themselves on the woman relinquished by him. But the officials, after having seen her, in order to obtain the gratitude of the king, presented her to him as a gift, and thus it happened that they treated Abraham well because of her.Abraham entered then into Egypt allegorically by adapting himself as one of the perfect to the imperfect in order to do good to them instead of holding on to virtue as a privilege, as has been said above, but in showing her to all as his sister, in humility, so that by contemplating her they might come to love her. But observe how it is said that the officials saw her. There are in fact in the ranks of the allegorically viewed Egyptians some men who are purer, who have a great capacity for perceiving virtue. And they not only perceived her, but they introduced her to their superior, that is, to the reason that governs them, and they praised her.

[AD 397] Ambrose of Milan on Genesis 12:17
This passage is a great witness and demonstration of the necessity of maintaining chastity, exhorting everyone to show himself chaste, not to long for the bed of another and not to seduce the wife of another, counting on the hope of not being discovered and of going unpunished. It exhorts all not to let themselves be tempted by neglect … or by a prolonged absence. God, the defender of marriage, is present. From him nothing remains hidden, nothing escapes him, and no one can make sport of him. God takes on the task of the absent husband and maintains the sentinels. Indeed, even without sentinels he surprises the guilty before he puts into action what he has premeditated. In the soul of each one, in the mind of all he recognizes the guilt. Adulterer, even if you have deceived the husband, you do not deceive God. Even if you have escaped from the husband, even if you have made sport of the judge of the tribunal, you do not escape from the judge of the whole world. He punishes with greater severity the injury that is done to the weak, the offenses done to an imprudent husband. In fact, the injury is greater when the author rather than the guardian of the marriage is held in contempt and not taken into consideration.

[AD 407] John Chrysostom on Genesis 12:18
Note that the severity of the punishment depressed his thinking, to the extent of leading him to offer an excuse to the just man and show signs of every care for him. And yet had God’s grace not been active in appeasing his mind and instilling fear into him, the consequence would have been that he would have flown into an even worse temper to the extent of attempting to even the score with his deceiver, the just man, wreaking his vengeance on him and bringing him to the ultimate peril. He did none of this, however. Fear quenched the fire of his anger. His one concern was to show signs of care for the just man. He now knew, you see, that it was impossible that this could be an unimportant man if he enjoyed such marvelous favor from on high.

[AD 407] John Chrysostom on Genesis 12:19
What imagination could adequately conceive amazement at these events? What tongue could manage to express this amazement? A woman dazzling in her beauty is closeted with an Egyptian partner, who is king and tyrant, of such frenzy and incontinent disposition, and yet she leaves his presence untouched, with her peerless chastity intact. Such, you see, God’s providence always is, marvelous and surprising. Whenever things are given up as hopeless by human beings, then he personally gives evidence of his invincible power in every circumstance.

[AD 407] John Chrysostom on Genesis 12:20
You would be right in applying to this just man those words that blessed David used of those who returned from the captivity in Babylon: “Though they sow in tears, they will reap in joy. They went their way and wept as they cast their seed, but in returning they will come in joy, carrying their sheaves aloft.” Did you see his downward journey to be beset with worry and fear, with the fear of death heavy upon him? Now see his return marked by great prosperity and distinction! The just man now, you see, was an object of respect to everyone in Egypt and in Palestine. After all, who would have failed to show respect for the one who so enjoyed God’s protection and was accorded such wonderful care? Quite likely what befell the king and his household escaped no one’s attention. His purpose, you see, in permitting everything and in allowing the just man’s trials to reach such a point was that his endurance might appear more conspicuous, his achievement might win the attention of the whole world, and no one would be unaware of the good man’s virtue.Do you see, dearly beloved, the magnitude of the benefit coming from his trials? Do you see the greatness of the reward for his endurance? Do you see man and wife, advanced in age though they were, giving evidence of so much good sense, so much courage, so much affection for one another, such a bond of love? Let us all imitate this and never become dispirited or consider the onset of tribulations to be a mark of abandonment on God’s part or an index of scorn. Rather, let us treat it as the clearest demonstration of God’s providential care for us.