TRV
Augustine of Hippo
Nicene & Post-Nicene · AD 325–500 · 7,530 passages across 62 books
Commentary
Genesis 3:17-19
And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;
What shall we say about the judgment pronounced against the man? Are we perhaps to think that the rich, for whom the necessities of life come easily and who do not labor on the earth, have escaped this punishment? It says, "The earth will be cursed for you in all your works, and you shall eat from it in sadness and groaning all the days of your life. It will bring forth thorns and thistles for you, and you will eat the grain of your field. In the sweat of your brow you will eat your bread until you return to the earth from which you were taken, for you are earth, and you will return to the earth." It is certainly clear that no one escapes this sentence. For anyone born in this life has difficulty in discovering the truth because of the corruptible body. For as Solomon says, "The body that is corrupted weighs down the soul, and the earthly habitation presses down the mind that thinks many thoughts." These are the labors and sorrows that man has from the earth. The thorns and thistles are the prickings of torturous questions or thoughts concerned with providing for this life.
Genesis 3:21
Unto Adam also and to his wife did the LORD God make coats of skins, and clothed them.
[Adam and Eve], who were stripped of their first garment [of innocence], deserved by their mortality garments of skin. For the true honor of man is to be the image and the likeness of God that is preserved only in relation to him by whom it is impressed. Hence, he clings to God so much the more, the less he loves what is his own. But through the desire of proving his own power, man by his own will falls down into himself as into a sort of [substitute] center. Since he, therefore, wishes to be like God, hence under no one, then as a punishment he is also driven from the center, which he himself is, down into the depths, that is, into those things wherein the beasts delight. Thus, since the likeness to God is his honor, the likeness to the beasts is his disgrace.
Genesis 3:23
Therefore the LORD God sent him forth from the garden of Eden, to till the ground from whence he was taken.
“And then, lest Adam stretch forth his hand to the tree of life and live forever, God dismissed him from paradise.” It is well put, “he dismissed,” and not “he excluded,” so that he might seem to be drawn down by the weight of his own sins to a place that suits him. A bad man generally experiences this when he begins to live among good men, if he is unwilling to change for the better. He is driven from the company of good men by the weight of his bad habit, and they do not exclude him against his will but dismiss him in accordance with his will.
Genesis 3:24
So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life.
“God placed cherubim and a flaming sword that moves”—this could be said in the one word movable—“to guard the way to the tree of life.” Those who translate the Hebrew words in Scripture say that “cherubim” means in Latin “the fullness of knowledge.” The flaming, movable sword means temporal punishments, because times move in their continual variety. It is called flaming because every tribulation burns somehow or other. But it is one thing to be burned until consumed, another to be burned until purified.
Genesis 4:1
And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.
Note that the name Cain means "ownership," which explains what was said at the time of his birth by his father or mother: "I have come into possession of a man through God."
Genesis 4:2
And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.
Cain was followed by Abel, who was killed by his brother and served as the first prophetic symbol of the City of God. He was like an alien on earth, destined to suffer cruel persecutions at the hands of the wicked men who can properly be called natives of earth because they love this world as their home and find their happiness in the worldly felicity of the earthly city.
Genesis 4:3-4
And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the LORD.
[The pagans say, "The Christians] censure the ceremonies of sacrifice, the victims, incense and the rest, which are used in temple worship. Yet the same ceremonies of sacrifice were originated by themselves or by the god they worship, in primitive times, when a god was assumed to need their offerings of first fruits." This question is evidently derived from that passage in our Scriptures that tells of Cain making an offering to God of the fruits of the earth and Abel of the firstlings of his flocks. We answer that the conclusion to be drawn from it is that sacrifice is a very ancient custom, because our true and sacred Books warn us that it is not to be offered except to the one true God. But God does not need sacrifices, as is most clearly expressed in the same sacred Books: "I said to the Lord, thou art my God, for thou hast no need of my goods," because in accepting or refusing or receiving them he is looking only to man's good. God does not derive any benefit from our worship, but we do.
Genesis 4:17
· 2 passages
And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch.
Now, it is recorded of Cain that he built a city, while Abel, as though he were merely a pilgrim on earth, built none. For the true city of the saints is in heaven, though here on earth it produces citizens in whom it wanders as on a pilgrimage through time looking for the kingdom of eternity. When that day comes, it will gather together all those who, rising in their bodies, shall have that kingdom given to them in which, along with their Prince, the King of Eternity, they shall reign forever and ever.
Consider now the text: “And Cain knew his wife, and she conceived, and brought forth Enoch; and he built a city and called the name thereof by the name of his son Enoch.” It does not at all follow from these words that we must believe Cain’s first son was Enoch, as though “Cain knew his wife” must refer to their first intercourse. You have the same expression used of the first father, Adam, but not only in reference to the conception of Cain, who seems to have been his firstborn, since a little later Scripture records, “Adam knew his wife, and she conceived and brought forth a son and called his name Seth.”
Genesis 4:18-22
And unto Enoch was born Irad: and Irad begat Mehujael: and Mehujael begat Methusael: and Methusael begat Lamech.
The text runs: “Methushael begot Lamech, who took two wives: the name of the one was Ada, and the name of the other Sella. And Ada brought forth Jobel; who was the father of such as dwell in tents, and of herdsmen. His brother’s name was Jubal. He was the father of all those who play the psaltery and cittara. Sella bore Tobel; he was the forger of all instruments of bronze and iron. The sister of Tobel was Noema.” This is as far as the line of descent from Cain is carried. There are eight generations in all, including Adam. The seventh is that of Lamech, who was the husband of two wives; the eighth is that of his children, among whom is the woman who is mentioned by name. What is here delicately intimated is that to the very end of its existence the earthly city will be propagated by physical births proceeding from the union of the sexes. This is why we are given the proper names of the wives of the last man mentioned as begetting children—a practice unheard of before the flood, except in the case of Eve.
Genesis 4:25
And Adam knew his wife again; and she bare a son, and called his name Seth: For God, said she, hath appointed me another seed instead of Abel, whom Cain slew.
It is quite possible that when Adam was divinely inspired to say, after Seth was born, “God has given me another seed, for Abel whom Cain slew,” there is no implication here that Seth was the next born in the order of time but only that he was destined to be a fit heir in the order of holiness.
Genesis 4:26
· 2 passages
And to Seth, to him also there was born a son; and he called his name Enos: then began men to call upon the name of the LORD.
We have two lines of succession, one descending from Cain and the other from the son who was born to Adam in order to be the heir of Abel who was killed and to whom Adam gave the name of Seth. He is referred to in the words “God has given me another seed, for Abel whom Cain slew.” Thus it is that the two series of generations that are kept so distinct, the one from Seth and the other from Cain, symbolize the two cities with which I am dealing in this work, the heavenly city in exile on earth and the earthly city, whose only search and satisfaction are for and in the joys of earth.
Seth means “resurrection,” and the name of his son Enosh means “man.” The name Adam also means “man,” but in Hebrew it can be used for any human person, either male or female; as one can see from the text: “He created them male and female; and blessed them and called their name Adam.” This text leaves no doubt that Eve was given her proper name, whereas the common noun “adam,” or “human being,” applied to both Adam and Eve. It was different with the name Enosh. This means “man,” Hebrew scholars tell us, in the sense of a man as distinguished from a woman. Thus Enosh was a “son” of “resurrection.”
Genesis 5:1
This is the book of the generations of Adam. In the day that God created man, in the likeness of God made he him;
The reason for this break in the narrative [in the description of the genealogies to the flood] was, I take it, that the writer, as though bidden by God, was unwilling to have the beginning of world chronology reckoned from the earthly city (that is, from the generation of Cain), and so he deliberately went back to Adam for a new beginning. If we ask why this return to recapitulate was made immediately after mentioning Seth's son, the man who hoped to call upon the name of the Lord God, the answer must be that this was the proper way to present the two cities. The one begins and ends with a murderer, for Lamech, too, as he admitted to his two wives, was a murderer. The other city begins with the man who hoped to call upon the name of the Lord God, for the invocation of God is the whole and the highest preoccupation of the city of God during its pilgrimage in this world. It is symbolized in the one "man" (Enosh) born of the "resurrection" (Seth) of the man who was slain (Abel). That one man in fact is a symbol of the unity of the whole heavenly city, which is not yet in the fullness t…
The reason for this break in the narrative [in the description of the genealogies to the flood] was, I take it, that the writer, as though bidden by God, was unwilling to have the beginning of world chronology reckoned from the earthly city (that is, from the generation of Cain), and so he deliberately went back to Adam for a new beginning. If we ask why this return to recapitulate was made immediately after mentioning Seth's son, the man who hoped to call upon the name of the Lord God, the answer must be that this was the proper way to present the two cities. The one begins and ends with a murderer, for Lamech, too, as he admitted to his two wives, was a murderer. The other city begins with the man who hoped to call upon the name of the Lord God, for the invocation of God is the whole and the highest preoccupation of the city of God during its pilgrimage in this world. It is symbolized in the one "man" (Enosh) born of the "resurrection" (Seth) of the man who was slain (Abel). That one man in fact is a symbol of the unity of the whole heavenly city, which is not yet in the fullness that it is destined to reach and which is adumbrated in this prophetic figure.
Genesis 5:7-8
And Seth lived after he begat Enos eight hundred and seven years, and begat sons and daughters:
Now notice that when the inspired writer sets forth the length of the lives of the men he mentions, the narrative always ends with the formula "and he begot sons and daughters, and all the time that so and so lived were so many years, and he died." Considering that these sons and daughters are not named and remembering how long people lived in that first period of our history, can anyone refuse to believe that so great a multitude of men was born as to have been able, in groups, to build a great number of cities?
Genesis 5:24
And Enoch walked with God: and he was not; for God took him.
Then the Scripture states that after some time had elapsed, there was a man named Enoch, whose justice merited a singular privilege: that he should not experience present death but should be transported to immortality from the midst of mortals. This incident shows that one just man is dearer to God than many sinners.
Genesis 5:25
And Methuselah lived an hundred eighty and seven years, and begat Lamech:
Moreover the difference in numbers that we find between the Hebrew text and our own constitutes no disagreement about this longevity of the ancients. If any discrepancy is such that the two versions cannot both be true, we must seek the authentic account of events in the language from which our text was translated. Though this opportunity is universally available to those who wish to take it, yet, significantly enough, no one has ventured to correct the Septuagint version from the Hebrew text in the very many places where it seems to offer something different. The reason is that those differences were not considered falsifications, nor do I think that they should be so regarded in any way. Rather, where no error by the copyist is ascertained and where the sense would be harmonious with the truth and would proclaim the truth, we should believe that they were moved by the Holy Spirit to say something differently, not as part of the service that they did as translators but as exercising the freedom that they enjoyed as prophets.
Genesis 6:2
That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.
In the third book of this work we made a passing reference to this question, but did not decide whether angels, inasmuch as they are spirits, could have bodily intercourse with women. For it is written, "Who makes His angels spirits," that is, He makes those who are by nature spirits His angels by appointing them to the duty of bearing His messages. For the Greek word ἄγγελος, which in Latin appears as "angelus," means a messenger. But whether the Psalmist speaks of their bodies when he adds, "and His ministers a flaming fire," or means that God's ministers ought to blaze with love as with a spiritual fire, is doubtful. However, the same trustworthy Scripture testifies that angels have appeared to men in such bodies as could not only be seen, but also touched. There is, too, a very general rumor, which many have verified by their own experience, or which trustworthy persons who have heard the experience of others corroborate, that sylvans and fauns, who are commonly called "incubi," had often made wicked assaults upon women, and satisfied their lust upon them; and that certain devils…
In the third book of this work we made a passing reference to this question, but did not decide whether angels, inasmuch as they are spirits, could have bodily intercourse with women. For it is written, "Who makes His angels spirits," that is, He makes those who are by nature spirits His angels by appointing them to the duty of bearing His messages. For the Greek word ἄγγελος, which in Latin appears as "angelus," means a messenger. But whether the Psalmist speaks of their bodies when he adds, "and His ministers a flaming fire," or means that God's ministers ought to blaze with love as with a spiritual fire, is doubtful. However, the same trustworthy Scripture testifies that angels have appeared to men in such bodies as could not only be seen, but also touched. There is, too, a very general rumor, which many have verified by their own experience, or which trustworthy persons who have heard the experience of others corroborate, that sylvans and fauns, who are commonly called "incubi," had often made wicked assaults upon women, and satisfied their lust upon them; and that certain devils, called Duses by the Gauls, are constantly attempting and effecting this impurity is so generally affirmed, that it were impudent to deny it. From these assertions, indeed, I dare not determine whether there be some spirits embodied in an aerial substance (for this element, even when agitated by a fan, is sensibly felt by the body), and who are capable of lust and of mingling sensibly with women; but certainly I could by no means believe that God's holy angels could at that time have so fallen, nor can I think that it is of them the Apostle Peter said, "For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment." [2 Peter 2:4] I think he rather speaks of these who first apostatized from God, along with their chief the devil, who enviously deceived the first man under the form of a serpent. But the same holy Scripture affords the most ample testimony that even godly men have been called angels; for of John it is written: "Behold, I send my messenger (angel) before Your face, who shall prepare Your way." [Mark 1:2] And the prophet Malachi, by a peculiar grace specially communicated to him, was called an angel. [Malachi 2:7]
But some are moved by the fact that we have read that the fruit of the connection between those who are called angels of God and the women they loved were not men like our own breed, but giants; just as if there were not born even in our own time (as I have mentioned above) men of much greater size than the ordinary stature. Was there not at Rome a few years ago, when the destruction of the city now accomplished by the Goths was drawing near, a woman, with her father and mother, who by her gigantic size over-topped all others? Surprising crowds from all quarters came to see her, and that which struck them most was the circumstance that neither of her parents were quite up to the tallest ordinary stature. Giants therefore might well be born, even before the sons of God, who are also called angels of God, formed a connection with the daughters of men, or of those living according to men, that is to say, before the sons of Seth formed a connection with the daughters of Cain. For thus speaks even the canonical Scripture itself in the book in which we read of this; its words are: "And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them, that the sons of God saw the daughters of men that they were fair [good]; and they took them wives of all which they chose. And the Lord God said, My Spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years. There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became the giants, men of renown." These words of the divine book sufficiently indicate that already there were giants in the earth in those days, in which the sons of God took wives of the children of men, when they loved them because they were good, that is, fair. For it is the custom of this Scripture to call those who are beautiful in appearance "good." But after this connection had been formed, then too were giants born. For the words are: "There were giants in the earth in those days, and also after that, when the sons of God came in unto the daughters of men." Therefore there were giants both before, "in those days," and "also after that." And the words, "they bare children to them," show plainly enough that before the sons of God fell in this fashion they begot children to God, not to themselves — that is to say, not moved by the lust of sexual intercourse, but discharging the duty of propagation, intending to produce not a family to gratify their own pride, but citizens to people the city of God; and to these they as God's angels would bear the message, that they should place their hope in God, like him who was born of Seth, the son of resurrection, and who hoped to call on the name of the Lord God, in which hope they and their offspring would be co-heirs of eternal blessings, and brethren in the family of which God is the Father.
But that those angels were not angels in the sense of not being men, as some suppose, Scripture itself decides, which unambiguously declares that they were men. For when it had first been stated that "the angels of God saw the daughters of men that they were fair, and they took them wives of all which they chose," it was immediately added, "And the Lord God said, My Spirit shall not always strive with these men, for that they also are flesh." For by the Spirit of God they had been made angels of God, and sons of God; but declining towards lower things, they are called men, a name of nature, not of grace; and they are called flesh, as deserters of the Spirit, and by their desertion deserted [by Him]. The Septuagint indeed calls them both angels of God and sons of God, though all the copies do not show this, some having only the name sons of God. And Aquila, whom the Jews prefer to the other interpreters, has translated neither angels of God nor sons of God, but sons of gods. But both are correct. For they were both sons of God, and thus brothers of their own fathers, who were children of the same God; and they were sons of gods, because begotten by gods, together with whom they themselves also were gods, according to that expression of the psalm: "I have said, You are gods, and all of you are children of the Most High." For the Septuagint translators are justly believed to have received the Spirit of prophecy; so that, if they made any alterations under His authority, and did not adhere to a strict translation, we could not doubt that this was divinely dictated. However, the Hebrew word may be said to be ambiguous, and to be susceptible of either translation, "sons of God," or "sons of gods."
Let us omit, then, the fables of those scriptures which are called apocryphal, because their obscure origin was unknown to the fathers from whom the authority of the true Scriptures has been transmitted to us by a most certain and well-ascertained succession. For though there is some truth in these apocryphal writings, yet they contain so many false statements, that they have no canonical authority. We cannot deny that Enoch, the seventh from Adam, left some divine writings, for this is asserted by the Apostle Jude in his canonical epistle. But it is not without reason that these writings have no place in that canon of Scripture which was preserved in the temple of the Hebrew people by the diligence of successive priests; for their antiquity brought them under suspicion, and it was impossible to ascertain whether these were his genuine writings, and they were not brought forward as genuine by the persons who were found to have carefully preserved the canonical books by a successive transmission. So that the writings which are produced under his name, and which contain these fables about the giants, saying that their fathers were not men, are properly judged by prudent men to be not genuine; just as many writings are produced by heretics under the names both of other prophets, and more recently, under the names of the apostles, all of which, after careful examination, have been set apart from canonical authority under the title of Apocrypha. There is therefore no doubt that, according to the Hebrew and Christian canonical Scriptures, there were many giants before the deluge, and that these were citizens of the earthly society of men, and that the sons of God, who were according to the flesh the sons of Seth, sunk into this community when they forsook righteousness. Nor need we wonder that giants should be born even from these. For all of their children were not giants; but there were more then than in the remaining periods since the deluge. And it pleased the Creator to produce them, that it might thus be demonstrated that neither beauty, nor yet size and strength, are of much moment to the wise man, whose blessedness lies in spiritual and immortal blessings, in far better and more enduring gifts, in the good things that are the peculiar property of the good, and are not shared by good and bad alike. It is this which another prophet confirms when he says, "These were the giants, famous from the beginning, that were of so great stature, and so expert in war. Those did not the Lord choose, neither gave He the way of knowledge unto them; but they were destroyed because they had no wisdom, and perished through their own foolishness."
But some are moved by the fact that we have read that the fruit of the connection between those who are called angels of God and the women they loved were not men like our own breed, but giants; just as if there were not born even in our own time (as I have mentioned above) men of much greater size than the ordinary stature. Was there not at Rome a few years ago, when the destruction of the city now accomplished by the Goths was drawing near, a woman, with her father and mother, who by her gigantic size over-topped all others? Surprising crowds from all quarters came to see her, and that which struck them most was the circumstance that neither of her parents were quite up to the tallest ordinary stature. Giants therefore might well be born, even before the sons of God, who are also called angels of God, formed a connection with the daughters of men, or of those living according to men, that is to say, before the sons of Seth formed a connection with the daughters of Cain. For thus speaks even the canonical Scripture itself in the book in which we read of this; its words are: "And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them, that the sons of God saw the daughters of men that they were fair [good]; and they took them wives of all which they chose. And the Lord God said, My Spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years. There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became the giants, men of renown." These words of the divine book sufficiently indicate that already there were giants in the earth in those days, in which the sons of God took wives of the children of men, when they loved them because they were good, that is, fair. For it is the custom of this Scripture to call those who are beautiful in appearance "good." But after this connection had been formed, then too were giants born. For the words are: "There were giants in the earth in those days, and also after that, when the sons of God came in unto the daughters of men." Therefore there were giants both before, "in those days," and "also after that." And the words, "they bare children to them," show plainly enough that before the sons of God fell in this fashion they begot children to God, not to themselves — that is to say, not moved by the lust of sexual intercourse, but discharging the duty of propagation, intending to produce not a family to gratify their own pride, but citizens to people the city of God; and to these they as God's angels would bear the message, that they should place their hope in God, like him who was born of Seth, the son of resurrection, and who hoped to call on the name of the Lord God, in which hope they and their offspring would be co-heirs of eternal blessings, and brethren in the family of which God is the Father.
But that those angels were not angels in the sense of not being men, as some suppose, Scripture itself decides, which unambiguously declares that they were men. For when it had first been stated that "the angels of God saw the daughters of men that they were fair, and they took them wives of all which they chose," it was immediately added, "And the Lord God said, My Spirit shall not always strive with these men, for that they also are flesh." For by the Spirit of God they had been made angels of God, and sons of God; but declining towards lower things, they are called men, a name of nature, not of grace; and they are called flesh, as deserters of the Spirit, and by their desertion deserted [by Him]. The Septuagint indeed calls them both angels of God and sons of God, though all the copies do not show this, some having only the name sons of God. And Aquila, whom the Jews prefer to the other interpreters, has translated neither angels of God nor sons of God, but sons of gods. But both are correct. For they were both sons of God, and thus brothers of their own fathers, who were children of the same God; and they were sons of gods, because begotten by gods, together with whom they themselves also were gods, according to that expression of the psalm: "I have said, You are gods, and all of you are children of the Most High." For the Septuagint translators are justly believed to have received the Spirit of prophecy; so that, if they made any alterations under His authority, and did not adhere to a strict translation, we could not doubt that this was divinely dictated. However, the Hebrew word may be said to be ambiguous, and to be susceptible of either translation, "sons of God," or "sons of gods."
Let us omit, then, the fables of those scriptures which are called apocryphal, because their obscure origin was unknown to the fathers from whom the authority of the true Scriptures has been transmitted to us by a most certain and well-ascertained succession. For though there is some truth in these apocryphal writings, yet they contain so many false statements, that they have no canonical authority. We cannot deny that Enoch, the seventh from Adam, left some divine writings, for this is asserted by the Apostle Jude in his canonical epistle. But it is not without reason that these writings have no place in that canon of Scripture which was preserved in the temple of the Hebrew people by the diligence of successive priests; for their antiquity brought them under suspicion, and it was impossible to ascertain whether these were his genuine writings, and they were not brought forward as genuine by the persons who were found to have carefully preserved the canonical books by a successive transmission. So that the writings which are produced under his name, and which contain these fables about the giants, saying that their fathers were not men, are properly judged by prudent men to be not genuine; just as many writings are produced by heretics under the names both of other prophets, and more recently, under the names of the apostles, all of which, after careful examination, have been set apart from canonical authority under the title of Apocrypha. There is therefore no doubt that, according to the Hebrew and Christian canonical Scriptures, there were many giants before the deluge, and that these were citizens of the earthly society of men, and that the sons of God, who were according to the flesh the sons of Seth, sunk into this community when they forsook righteousness. Nor need we wonder that giants should be born even from these. For all of their children were not giants; but there were more then than in the remaining periods since the deluge. And it pleased the Creator to produce them, that it might thus be demonstrated that neither beauty, nor yet size and strength, are of much moment to the wise man, whose blessedness lies in spiritual and immortal blessings, in far better and more enduring gifts, in the good things that are the peculiar property of the good, and are not shared by good and bad alike. It is this which another prophet confirms when he says, "These were the giants, famous from the beginning, that were of so great stature, and so expert in war. Those did not the Lord choose, neither gave He the way of knowledge unto them; but they were destroyed because they had no wisdom, and perished through their own foolishness."
Genesis 6:3
And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.
By the justice of God the whole human race was delivered into the power of the devil, the sin of the first man passing originally into all persons of both sexes, who were born through conjugal union, the debt of our first parents binding all their posterity. This delivering was first indicated in Genesis, where, when it was said to the serpent, “Earth shall you eat,” it was said to the man, “Earth you are, and into earth shall you return.” The death of the body was foretold by “into earth shall you return,” because he would not have experienced it if he had remained upright as he had been created. But what he says to the living man, “earth you are,” shows that the whole man has been changed into something worse, for “earth you are” is just the same as saying “My spirit shall not remain in those men, because they are flesh.” Hence God showed that he had then delivered man to the devil, to whom he had said, “Earth shall you eat.”
Genesis 6:4
There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.
All that we indubitably know, from the authentic Scripture in the Hebrew and Christian traditions, is the fact that in the period before the flood there were many giants, all of whom belonged to the earthly city in human society, and that there were sons of God descended from Seth who abandoned their holiness and sank down into this city of men. There is nothing surprising in the fact that giants could be born from men like that. In any case, they were not all giants, even though there were more giants before the flood than in all subsequent ages. They served a divine purpose in that they reveal to anyone who is wise that mere bodily magnitude and might have no more value than bodily beauty.