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Commentary

Genesis 21:4

And Abraham circumcised his son Isaac being eight days old, as God had commanded him.

Let us ask the Lord lest, in accordance with the apostle’s word, even with us, “when Moses is read the veil be upon” our “heart.” For it has been read that Abraham begot a son, Isaac, when he was a hundred years old. “And Sarah said, ‘Who will announce to Abraham that Sarah nurses a child?’ ” “And then,” the text says, “Abraham circumcised the child on the eighth day.” Abraham does not celebrate his son’s birthday, but he celebrates the day of this weaning “and makes a great feast.”6Why? Do we think that it is the Holy Spirit’s intention to write stories and to narrate how a child was weaned and a feast was made, how he played and did other childish things? Or should we understand by these things that he wishes to teach us something divine and worthy that the human race might learn from the words of God?
Genesis 21:6

And Sarah said, God hath made me to laugh, so that all that hear will laugh with me.

Isaac means “laughter” or “joy.” Who is it, then, who begets such a son? It is doubtless he who said of these whom he begot through the gospel: “For you are my joy and crown of glory.” For sons of this kind, there is a feast and great joy when they are weaned, for these who “no longer need milk, but strong meat, who by taking up their power have their senses exercised to the discerning of good or evil.” There is a great feast for such as these, when they are weaned. But a feast cannot be offered nor joy possessed for those of whom the apostle says, “I gave you milk to drink, not meat; for you were not able as yet, but neither indeed are you able still. And I could not speak to you as to spiritual, but as to carnal, as to little ones in Christ.” Let those who wish the divine Scripture to be understood straightforwardly tell us what it means: “I could not speak to you as to spiritual, but as to carnal, as to little ones in Christ; I gave you milk to drink, not meat.” Can these words be taken straightforwardly?
Genesis 21:8

And the child grew, and was weaned: and Abraham made a great feast the same day that Isaac was weaned.

Isaac, Scripture says, “grew” and became strong; that is, Abraham’s joy grew as he looked not at those things “which are seen but at the things which are not seen.” For Abraham did not rejoice about present things or about the riches of the world and the activities of the age. But do you wish to hear why Abraham rejoiced? Hear the Lord saying to the Jews: “Abraham your father desired to see my day, and he saw it and was glad.” In this way, therefore, “Isaac grew.” That vision of Abraham, in which he saw the day of Christ and the hope which is in Christ, were increasing his joys. And would that you too might be made Isaac and be a joy to your mother the church!
Genesis 21:9 · 2 passages

And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.

Spiritually, therefore, all indeed who come to the recognition of God through faith can be called sons of Abraham; but among these some cling to God on the basis of love, others on the basis of dread and fear of future judgment. Whence also the apostle John says, “He who fears is not perfected in love, but perfect love casts out fear.” He therefore who “is perfected in love” is born of Abraham and is “a son of the free woman.” But he who keeps the commandments, not in perfect love but in dread of future torment and in fear of punishments is, indeed, also himself a son of Abraham. He too receives gifts, that is, the reward of his work (because even “he who shall give a cup of cold water only in the name of a disciple, shall not lose his reward”). Nevertheless he is inferior to that person who is perfected, not in slavish fear but in the freedom of love.The apostle also shows something similar when he says, “As long indeed as the heir is a child, he differs nothing from a servant, though he be lord of all; but he is under tutors and governors until the time appointed by the father.” He…
Spiritually, therefore, all indeed who come to the recognition of God through faith can be called sons of Abraham; but among these some cling to God on the basis of love, others on the basis of dread and fear of future judgment. Whence also the apostle John says, “He who fears is not perfected in love, but perfect love casts out fear.” He therefore who “is perfected in love” is born of Abraham and is “a son of the free woman.” But he who keeps the commandments, not in perfect love but in dread of future torment and in fear of punishments is, indeed, also himself a son of Abraham. He too receives gifts, that is, the reward of his work (because even “he who shall give a cup of cold water only in the name of a disciple, shall not lose his reward”). Nevertheless he is inferior to that person who is perfected, not in slavish fear but in the freedom of love.The apostle also shows something similar when he says, “As long indeed as the heir is a child, he differs nothing from a servant, though he be lord of all; but he is under tutors and governors until the time appointed by the father.” He is “a child,” therefore, who is nourished “with milk” and “is unskillful in the word of justice”; nor is he able to receive the “solid food” of the divine wisdom and knowledge of the law. He cannot “compare spiritual things with spiritual.” He cannot yet say, “But when I became a man, I put away the things of a child.” He “differs,” therefore, “nothing from a servant.”
But if “leaving the word of the first principles of Christ,” he be borne to perfection and “seek the things that are above, where Christ is sitting at the right hand of God, not the things that are on the earth” and “look not at the things which are seen but at the things which are not seen,” nor in the divine Scriptures follow “the letter which kills” but “the spirit which quickens,” from those things he will doubtless be one who does not receive “the spirit of bondage again in fear, but the spirit of adoption, whereby they cry, Abba, Father.”
Sarah is angry because the son of the bondwoman plays with the son of the free woman, and she considers that play to be a disaster. She counsels Abraham and says, “Cast out the bondwoman and her son. For the son of the bondwoman shall not be heir with my son, Isaac.”I shall not now consider how these words ought to be understood. The apostle discussed them in this way, saying, “Tell me, you who have read the law, have you not heard the law? For it is written that Abraham had two sons, the one by a bondwoman and the other by a free woman. But he indeed who was of the bondwoman was born according to the flesh, but he of the free woman was by promise. Which things are allegorical.” What then? Is Isaac not “born according to the flesh”? Did Sarah not bear him? Is he not circumcised? In regard to this very incident, that he played with Ishmael, did he not play in the flesh? This indeed is what is astonishing in the apostle’s understanding, that he called things “allegorical” that are quite obviously done in the flesh. His purpose is that we might learn how to treat other passages, and esp…
Sarah is angry because the son of the bondwoman plays with the son of the free woman, and she considers that play to be a disaster. She counsels Abraham and says, “Cast out the bondwoman and her son. For the son of the bondwoman shall not be heir with my son, Isaac.”I shall not now consider how these words ought to be understood. The apostle discussed them in this way, saying, “Tell me, you who have read the law, have you not heard the law? For it is written that Abraham had two sons, the one by a bondwoman and the other by a free woman. But he indeed who was of the bondwoman was born according to the flesh, but he of the free woman was by promise. Which things are allegorical.” What then? Is Isaac not “born according to the flesh”? Did Sarah not bear him? Is he not circumcised? In regard to this very incident, that he played with Ishmael, did he not play in the flesh? This indeed is what is astonishing in the apostle’s understanding, that he called things “allegorical” that are quite obviously done in the flesh. His purpose is that we might learn how to treat other passages, and especially these in which the historical narrative appears to reveal nothing worthy of the divine law.
Ishmael, therefore, is born “according to the flesh,” the son of the bondwoman. But Isaac, who was “the son of the free woman,” is not born “according to the flesh” but “according to promise.” And the apostle says of these words that “Hagar engendered” a carnal people “unto bondage.” But Sarah, who was free, engendered a people which is not “according to the flesh” but has been called to freedom, by which “freedom Christ has made him free.” For Christ himself said, “If the Son shall make you free, you shall be free indeed.”
But let us see what the apostle adds to these words as he expounds them: “But as then he,” Scripture says, “who was according to the flesh, persecuted him who was according to the spirit, so also it is now.” Notice how the apostle teaches us that in all things the flesh is opposed to the spirit, whether that carnal people is opposed to this spiritual people, or even among ourselves, if someone is still carnal, he is opposed to the spiritual. For even you, if you live “according to the flesh” and direct your life “according to the flesh,” are a son of Hagar and for this reason are opposed to these who live “according to the spirit.” Or even if we inquire in ourselves, we find that “the flesh lusts against the spirit and the spirit against the flesh and these are contrary to one another,” and we find “a law in our members flighting against the law of our mind and leading us captive in the law of sin.” Do you see how great the battles of the flesh against the spirit are?
There is yet also another battle more violent perhaps than all these. These who understand the law “according to the flesh” are opposed to and persecute these who perceive it “according to the spirit.” Why? Because “the sensual man does not perceive the things that are of the spirit of God. For it is foolishness to him, and he cannot understand because it is spiritually discerned.”
Genesis 21:14

And Abraham rose up early in the morning, and took bread, and a bottle of water, and gave it unto Hagar, putting it on her shoulder, and the child, and sent her away: and she departed, and wandered in the wilderness of Beersheba.

Let us see what Abraham does meanwhile after Sarah is displeased. He casts out the bondwoman and her son, but nevertheless he gives him a bottle of water. For his mother does not have a well of living water, nor could the boy draw water from a well. Isaac has wells for which he also suffers strife against the Philistines, but Ishmael drinks water from a bottle. This bottle, as it is a bottle, fails, and therefore he is thirsty and does not find a well.But you, who are a son “of promise as Isaac,” “drink water from your own fountains, and let not the waters flow forth from your wells, but let your waters run in your streets.” But one “who is born according to the flesh” drinks water from a bottle, and the water itself fails him, and he lacks in many things. The bottle of the law is the letter, from which carnal people drink and thence receives understanding. This letter frequently fails them. It cannot extricate itself, for the historical understanding is defective in many things. But the church drinks from the evangelic and apostolic fountains that never fail but “run in its streets…
Let us see what Abraham does meanwhile after Sarah is displeased. He casts out the bondwoman and her son, but nevertheless he gives him a bottle of water. For his mother does not have a well of living water, nor could the boy draw water from a well. Isaac has wells for which he also suffers strife against the Philistines, but Ishmael drinks water from a bottle. This bottle, as it is a bottle, fails, and therefore he is thirsty and does not find a well.But you, who are a son “of promise as Isaac,” “drink water from your own fountains, and let not the waters flow forth from your wells, but let your waters run in your streets.” But one “who is born according to the flesh” drinks water from a bottle, and the water itself fails him, and he lacks in many things. The bottle of the law is the letter, from which carnal people drink and thence receives understanding. This letter frequently fails them. It cannot extricate itself, for the historical understanding is defective in many things. But the church drinks from the evangelic and apostolic fountains that never fail but “run in its streets,” because they always abound and flow in the breadth of spiritual interpretation. The church drinks also “from wells” when it draws and examines certain deeper things from the law.
On account of this mystery also, I think, our Lord and Savior said to the Samaritan woman, when, as if he were speaking with Hagar herself he said, “Whoever shall drink of this water shall thirst again; but he who shall drink of the water which I give him shall not thirst forever.” But she says to the Savior, “Sir, give me this water, that I may not thirst, nor come here to draw.” After this the Lord says to her, “There shall come to be in him who believes in me a fountain of water springing up into life everlasting.”
Genesis 21:19

And God opened her eyes, and she saw a well of water; and she went, and filled the bottle with water, and gave the lad drink.

After this, when already he had been abandoned as dead and had wept, the angel of the Lord is present with him “and opened Hagar’s eyes, and she saw a well of living water.”How can these words be related to history? For when do we find that Hagar has closed eyes and they are later opened? Is not the spiritual and mystical meaning in these words clearer than light, that that people which is “according to the flesh” is abandoned and lies in hunger and thirst, suffering “not a famine of bread nor a thirst for water, but a thirst for the word of God,” until the eyes of the synagogue are opened? This is what the apostle says is a “mystery”: that “blindness in part has happened in Israel until the fullness of the Gentiles should come in, and then all Israel should be saved.” That therefore is the blindness in Hagar, who gave birth “according to the flesh,” who remains blind until “the veil of the letter be removed” by the angel of God and she sees the “living water.” For now the Jews lie around the well, but their eyes are closed, and they cannot drink from the well of the law and the prop…
After this, when already he had been abandoned as dead and had wept, the angel of the Lord is present with him “and opened Hagar’s eyes, and she saw a well of living water.”How can these words be related to history? For when do we find that Hagar has closed eyes and they are later opened? Is not the spiritual and mystical meaning in these words clearer than light, that that people which is “according to the flesh” is abandoned and lies in hunger and thirst, suffering “not a famine of bread nor a thirst for water, but a thirst for the word of God,” until the eyes of the synagogue are opened? This is what the apostle says is a “mystery”: that “blindness in part has happened in Israel until the fullness of the Gentiles should come in, and then all Israel should be saved.” That therefore is the blindness in Hagar, who gave birth “according to the flesh,” who remains blind until “the veil of the letter be removed” by the angel of God and she sees the “living water.” For now the Jews lie around the well, but their eyes are closed, and they cannot drink from the well of the law and the prophets.
But let us also beware, for frequently we also lie around the well “of living water,” that is, around the divine Scriptures, and err in them. We hold the books and we read them, but we do not touch upon the spiritual sense. And therefore there is need for tears and incessant prayer that the Lord may open our eyes, because even the eyes of those blind men who were sitting in Jericho would not have been opened unless they had cried out to the Lord. And what am I saying? That our eyes, which are already opened, might be opened? For Jesus came to open the eyes of the blind. Our eyes therefore are opened, and the veil of the letter of the law is removed. But I fear that we ourselves may close them again in a deeper sleep while we are not watchful in the spiritual meaning. Nor are we disturbed so that we dispel sleep from our eyes and contemplate things which are spiritual, that we might not err with the carnal people set around the water itself.
Genesis 22:1

And it came to pass after these things, that God did tempt Abraham, and said unto him, Abraham: and he said, Behold, here I am.

Give your attention, you who have approached God—who believe yourselves to be faithful. Consider diligently how the faith of the faithful is proved from these words that have been read to us. “And it came to pass,” the text says, “after these words, God tested Abraham and said to him: ‘Abraham, Abraham.’ And he said, ‘Here I am.’ ” Observe each detail that has been written. For, if one knows how to dig into the depth, he will find a treasure in the details, and perhaps also the precious jewels of the mysteries lie hidden where they are not esteemed. This man was previously called Abram. Nowhere do we read that God called him by this name or said to him, “Abram, Abram.” For God could not call him by a name that was to be abolished, but he calls him by this name which he himself gave. And not only does he call him by this name, but also he repeats it.
Genesis 22:2 · 2 passages

And he said, Take now thy son, thine only son Isaac, whom thou lovest, and get thee into the land of Moriah; and offer him there for a burnt offering upon one of the mountains which I will tell thee of.

What do you say to these things, Abraham? What kind of thoughts are stirring in your heart? A word has been uttered by God that is such as to shatter and try your faith. What do you say to these things? What are you thinking? What are you reconsidering? Are you thinking, are you turning over in your heart that if the promise has been given to me in Isaac but I offer him for a burnt offering, it remains that that promise holds no hope? Or rather do you think of those well-known words and say that it is impossible for him who promised to lie; be that as it may, the promise shall remain? But I, because “I am the least,” am not able to examine the thoughts of such a great patriarch, nor can I know what thoughts the voice of God which had proceeded to test him stirred in him, what feeling it caused, when he was ordered to slay his only son. But since “the spirit of prophets is subject to the prophets,” the apostle Paul, who, I believe, was teaching by the Spirit what feeling, what plan Abraham considered, has revealed it. He says, “By faith Abraham did not hesitate, when he offered his on…
What do you say to these things, Abraham? What kind of thoughts are stirring in your heart? A word has been uttered by God that is such as to shatter and try your faith. What do you say to these things? What are you thinking? What are you reconsidering? Are you thinking, are you turning over in your heart that if the promise has been given to me in Isaac but I offer him for a burnt offering, it remains that that promise holds no hope? Or rather do you think of those well-known words and say that it is impossible for him who promised to lie; be that as it may, the promise shall remain? But I, because “I am the least,” am not able to examine the thoughts of such a great patriarch, nor can I know what thoughts the voice of God which had proceeded to test him stirred in him, what feeling it caused, when he was ordered to slay his only son. But since “the spirit of prophets is subject to the prophets,” the apostle Paul, who, I believe, was teaching by the Spirit what feeling, what plan Abraham considered, has revealed it. He says, “By faith Abraham did not hesitate, when he offered his only son, in whom he had received the promises, thinking that God is able to raise him up even from the dead.”

The apostle therefore has reported to us the thoughts of the faithful man, that the faith in the resurrection began to be held already at that time in Isaac. Abraham therefore hoped for the resurrection of Isaac and believed in a future that had not yet happened. How then are they “sons of Abraham” who do not believe what has happened in Christ, which Abraham believed was to be in Isaac? No rather, that I may speak more clearly, Abraham knew himself to prefigure the image of future truth. He knew the Christ was to be born from his seed, who also was to be offered as a truer victim for the whole world and was to be raised from the dead.
But now meanwhile the text says, “God was testing Abraham and says to him: ‘Take your dearest son whom you love.’ ” For to have said “son” would not have been enough, but “dearest” also is added. Let this too be considered. Why is there still added also, “whom you love”? But behold the importance of the test. The affections of a father are roused by the dear and sweet appellations repeated frequently, that by awaking memories of love the paternal right hand might be slowed in slaying his son and the total warfare of the flesh might fight against the faith of the soul.“Take,” therefore, the text says, “your dearest son Isaac, whom you love.” Let it be, Lord, that you are reminding the father of the son; you add also “dearest,” whom you are commanding to be slain. Let this be sufficient for the father’s torment. You add again also, “whom you love.” Let the triple torment of the father be in this. Why is there need yet that you bring to mind also “Isaac”? Did Abraham not know that that dearest son of his, that one whom he loved, was called Isaac? But why is it added at this time? That A…
But now meanwhile the text says, “God was testing Abraham and says to him: ‘Take your dearest son whom you love.’ ” For to have said “son” would not have been enough, but “dearest” also is added. Let this too be considered. Why is there still added also, “whom you love”? But behold the importance of the test. The affections of a father are roused by the dear and sweet appellations repeated frequently, that by awaking memories of love the paternal right hand might be slowed in slaying his son and the total warfare of the flesh might fight against the faith of the soul.“Take,” therefore, the text says, “your dearest son Isaac, whom you love.” Let it be, Lord, that you are reminding the father of the son; you add also “dearest,” whom you are commanding to be slain. Let this be sufficient for the father’s torment. You add again also, “whom you love.” Let the triple torment of the father be in this. Why is there need yet that you bring to mind also “Isaac”? Did Abraham not know that that dearest son of his, that one whom he loved, was called Isaac? But why is it added at this time? That Abraham might recall that you had said to him, “In Isaac shall your seed be called, and that in Isaac the promises shall be yours.” The reminder of the name also produces hopelessness in the promises that were made under this name. But all these things happened because God was testing Abraham.
Genesis 22:3

And Abraham rose up early in the morning, and saddled his ass, and took two of his young men with him, and Isaac his son, and clave the wood for the burnt offering, and rose up, and went unto the place of which God had told him.

Abraham arose in the morning (because the text adds “in the morning,” perhaps it wished to show that the beginning of light shone in his heart), saddled his ass, prepared wood, took along his son. He does not deliberate, he does not reconsider, he does not take counsel with any man, but immediately he sets out on the journey.“And he came,” the text says, “to the place which the Lord had said to him, on the third day.” I omit now what mystery the “third day” contains. I consider the wisdom and intention of the one who tests him. Since everything was done in the mountains, was there thus no mountain nearby. But a journey is prolonged for three days, and during the whole three days the parent’s heart is tormented with recurring anxieties, so that the father might consider the son in this whole lengthy period, that he might partake of food with him, that the child might weigh in his father’s embraces for so many nights, might cling to his breast, might lie in his bosom? Behold to what an extent the test is heaped up.
Genesis 22:4

Then on the third day Abraham lifted up his eyes, and saw the place afar off.

The third day, however, is always applied to mysteries. For also when the people had departed from Egypt, they offer sacrifice to God on the third day and are purified on the third day. And the third day is the day of the Lord’s resurrection. Many other mysteries also are included within this day.
Genesis 22:5

And Abraham said unto his young men, Abide ye here with the ass; and I and the lad will go yonder and worship, and come again to you.

He leaves the servants. For the servants were not able to ascend with Abraham to the place of the burnt offering that God had shown him. “You,” therefore, the text says, “stay here, but I and the child will go and when we have worshiped, we will return to you.” Tell me, Abraham, are you saying to the servants in truth that you will worship and return with the child, or are you deceiving them? If you are telling the truth, then you will not make him a burnt offering. If you are deceiving, it is not fitting for so great a patriarch to deceive. What disposition therefore does this statement indicate in you? I am speaking the truth, he says, and I offer the child as a burnt offering. For this reason I carry wood with me, and I return to you with him. For I believe, and this is my faith, that “God is able to raise him up even from the dead.”
Genesis 22:6

And Abraham took the wood of the burnt offering, and laid it upon Isaac his son; and he took the fire in his hand, and a knife; and they went both of them together.

That Isaac carries on himself “the wood for the burnt offering” is a figure, because Christ also “himself carried his own cross,” and yet to carry “the wood for the burnt offering” is the duty of a priest. He therefore becomes victim and priest. But what is added also is related to this: “And they both went off together.” For when Abraham carries the fire and knife as if to sacrifice, Isaac does not go behind him but with him, that he might be shown to contribute equally with the priesthood itself.
Genesis 22:7

And Isaac spake unto Abraham his father, and said, My father: and he said, Here am I, my son. And he said, Behold the fire and the wood: but where is the lamb for a burnt offering?

What happens after this? “Isaac,” the text says, “said to Abraham, his father, ‘Father.’ ” And in this moment the word of testing is uttered by the son. For how do you suppose the son to be killed struck the father’s heart with this word? And although Abraham was very rigid by virtue of his faith, nevertheless he also returned an expression of affection and responded, “What is it, son?” And Isaac says, “Behold the fire and the wood. Where is the sheep for the burnt offering?”
Genesis 22:8

And Abraham said, My son, God will provide himself a lamb for a burnt offering: so they went both of them together.

Abraham’s response, sufficiently accurate and cautious, moves me. I do not know what he saw in his spirit, for he does not speak about the present but about the future: “God himself will provide himself a sheep.” He responded to his son’s inquiry about present things with future things. For “the Lord himself will provide himself a sheep” in Christ, because also, “Wisdom herself has built herself a house,” and “He himself humbled himself unto death.”
Genesis 22:9

And they came to the place which God had told him of; and Abraham built an altar there, and laid the wood in order, and bound Isaac his son, and laid him on the altar upon the wood.

Many of you who hear these words are fathers in the church of God. Do you think any one of you from the mere relating of the story acquires so much steadfastness, so much strength of soul, that when a son perhaps is lost by a death that is common and due to all, even if he be an only son, even if he be a beloved son, might bring in Abraham as an example for himself and set his magnanimity before his eyes? And indeed this greatness of soul is not required of you, that you yourself should bind your son, you yourself tie him, you yourself prepare the sword, you yourself slay your only son. All these services are not asked of you. Be constant in purpose, at least, and mind. Offer your son to God with a joyful, immovable faith. Be the priest for your son’s life. It is not fitting that the priest weeps who offers to God.Do you wish to see that this is required of you? In the Gospel the Lord says, “If you were the children of Abraham, you would do the works surely of Abraham.” Behold, this is a work of Abraham. Do the works that Abraham did, but not with sadness, “for God loves a cheerful g…
Many of you who hear these words are fathers in the church of God. Do you think any one of you from the mere relating of the story acquires so much steadfastness, so much strength of soul, that when a son perhaps is lost by a death that is common and due to all, even if he be an only son, even if he be a beloved son, might bring in Abraham as an example for himself and set his magnanimity before his eyes? And indeed this greatness of soul is not required of you, that you yourself should bind your son, you yourself tie him, you yourself prepare the sword, you yourself slay your only son. All these services are not asked of you. Be constant in purpose, at least, and mind. Offer your son to God with a joyful, immovable faith. Be the priest for your son’s life. It is not fitting that the priest weeps who offers to God.Do you wish to see that this is required of you? In the Gospel the Lord says, “If you were the children of Abraham, you would do the works surely of Abraham.” Behold, this is a work of Abraham. Do the works that Abraham did, but not with sadness, “for God loves a cheerful giver.” But also if you should be so inclined to God, it will be said also to you, “Ascend into the high land and into the mountain which I shall show you, and there offer your son to me.” “Offer your son” not in the depths of the earth or “in the vale of tears” but in the high and lofty mountains. Show that faith in God is stronger than the affections of the flesh. For Abraham loved Isaac his son, the text says, but he placed the love of God before love of the flesh, and he is found not with the affection of the flesh but “with the affection of Christ,” that is, with the affection of the Word of God and of the truth and wisdom.
Genesis 22:12 · 2 passages

And he said, Lay not thine hand upon the lad, neither do thou any thing unto him: for now I know that thou fearest God, seeing thou hast not withheld thy son, thine only son from me.

In this statement it is usually thrown out against us that God says that “now” he had learned that Abraham fears God, as though he were such as not to have known previously. God knew, and it was not hidden from him, since it is he “who has known all things before they come to pass.” But these things are written on account of you, because you too indeed have believed in God. But unless you fulfill “the works of faith,” unless you are obedient to all the commands, even the more difficult ones, unless you offer sacrifice and show that you place neither father nor mother nor sons before God, you will not know that you fear God. Nor will it be said of you, “Now I know that you fear God.”And yet it must be considered that an angel is related to have spoken these words to Abraham, and subsequently this angel is clearly shown to be the Lord. Whence I think that, just as among us “he was found in appearance as a man,” so also among angels he was found in appearance as an angel. And following his example the angels in heaven rejoice “over one sinner repenting” and glory in the progress people…
In this statement it is usually thrown out against us that God says that “now” he had learned that Abraham fears God, as though he were such as not to have known previously. God knew, and it was not hidden from him, since it is he “who has known all things before they come to pass.” But these things are written on account of you, because you too indeed have believed in God. But unless you fulfill “the works of faith,” unless you are obedient to all the commands, even the more difficult ones, unless you offer sacrifice and show that you place neither father nor mother nor sons before God, you will not know that you fear God. Nor will it be said of you, “Now I know that you fear God.”And yet it must be considered that an angel is related to have spoken these words to Abraham, and subsequently this angel is clearly shown to be the Lord. Whence I think that, just as among us “he was found in appearance as a man,” so also among angels he was found in appearance as an angel. And following his example the angels in heaven rejoice “over one sinner repenting” and glory in the progress people make in their relationship with God. For they, as it were, have charge over our souls, to whom, “while we are still children we are committed,” as it were, “to tutors and governors until the time appointed by the father.” And they therefore now say about the progress of each of us, “Now I know that you fear God.” For example, I intend to be a martyr. An angel could not say to me on this basis, “Now I know that you fear God,” for an intention of the mind is known to God alone. But if I shall undertake the struggles, if I shall utter a “good confession,” if I shall bear calmly all things which are inflicted, then an angel can say, as if confirming and strengthening me, “Now I know that you fear God.”
But grant that these words are spoken to Abraham, and he is said to fear God. Why? Because he did not spare his son. But let us compare these words with those of the apostle, where he says of God: “who spared not his own Son but delivered him up for us all.” Behold God contending with people in magnificent generosity: Abraham offered God a mortal son who was not put to death; God delivered to death an immortal Son for humanity.What shall we say to these things? “What shall we render to the Lord for all the things that he has rendered to us?” God the Father, on account of us, “spared not his own son.” Who of you, do you suppose, will sometime hear the voice of an angel saying, “Now I know that you fear God, because you spared not your son,” or your daughter or wife? Or, you spared not your money or the honors of the world or the ambitions of the world, but you have despised all things and “have counted all things dung that you may gain Christ”? Or, “you have sold all things and have given to the poor and have followed the Word of God?” Who of you, do you think, will hear a word of thi…
But grant that these words are spoken to Abraham, and he is said to fear God. Why? Because he did not spare his son. But let us compare these words with those of the apostle, where he says of God: “who spared not his own Son but delivered him up for us all.” Behold God contending with people in magnificent generosity: Abraham offered God a mortal son who was not put to death; God delivered to death an immortal Son for humanity.What shall we say to these things? “What shall we render to the Lord for all the things that he has rendered to us?” God the Father, on account of us, “spared not his own son.” Who of you, do you suppose, will sometime hear the voice of an angel saying, “Now I know that you fear God, because you spared not your son,” or your daughter or wife? Or, you spared not your money or the honors of the world or the ambitions of the world, but you have despised all things and “have counted all things dung that you may gain Christ”? Or, “you have sold all things and have given to the poor and have followed the Word of God?” Who of you, do you think, will hear a word of this kind from the angels? Meanwhile Abraham hears this voice, and it is said to him, “You spared not your beloved son because of me.”
Genesis 22:13

And Abraham lifted up his eyes, and looked, and behold behind him a ram caught in a thicket by his horns: and Abraham went and took the ram, and offered him up for a burnt offering in the stead of his son.

We said above, I think, that Isaac represented Christ. But this ram no less also seems to represent Christ. Now it is worthwhile to know how both are appropriate to Christ, both Isaac, who is not slain, and the ram, which is slain.Christ is “the Word of God,” but “the Word was made flesh.” One aspect of Christ therefore is from above; the other is received from human nature and the womb of the Virgin. Christ suffered, therefore, but in the flesh; and he endured death, but it was the flesh, of which this ram is a type, as also John said: “Behold the Lamb of God, behold him who takes away the sin of the world.” But the Word continued “in incorruption,” which is Christ according to the spirit, of which Isaac is the image. For this reason he is victim and priest. For truly according to the spirit he offers the victim to the Father, but according to the flesh he himself is offered on the altar of the cross. As it is said of him, “Behold the Lamb of God, behold him who takes away the sin of the world,” so it is said of him, “You are a priest forever according to the order of Melchizedek.”

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