Man then lived with God for his rule in a paradise at once physical and spiritual. For neither was it a paradise only physical for the advantage of the body, and not also spiritual for the advantage of the mind; nor was it only spiritual to afford enjoyment to man by his internal sensations, and not also physical to afford him enjoyment through his external senses. But obviously it was both for both ends. But after that proud and therefore envious angel (of whose fall I have said as much as I was able in the eleventh and twelfth books of this work, as well as that of his fellows, who, from being God's angels, became his angels), preferring to rule with a kind of pomp of empire rather than to be another's subject, fell from the spiritual Paradise, and essaying to insinuate his persuasive guile into the mind of man, whose unfallen condition provoked him to envy now that himself was fallen, he chose the serpent as his mouthpiece in that bodily Paradise in which it and all the other earthly animals were living with those two human beings, the man and his wife, subject to them, and harmless; and he chose the serpent because, being slippery, and moving in tortuous windings, it was suitable for his purpose. And this animal being subdued to his wicked ends by the presence and superior force of his angelic nature, he abused as his instrument, and first tried his deceit upon the woman, making his assault upon the weaker part of that human alliance, that he might gradually gain the whole, and not supposing that the man would readily give ear to him, or be deceived, but that he might yield to the error of the woman. For as Aaron was not induced to agree with the people when they blindly wished him to make an idol, and yet yielded to constraint; and as it is not credible that Solomon was so blind as to suppose that idols should be worshipped, but was drawn over to such sacrilege by the blandishments of women; so we cannot believe that Adam was deceived, and supposed the devil's word to be truth, and therefore transgressed God's law, but that he by the drawings of kindred yielded to the woman, the husband to the wife, the one human being to the only other human being. For not without significance did the apostle say, "And Adam was not deceived, but the woman being deceived was in the transgression;"88 but he speaks thus, because the woman accepted as true what the serpent told her, but the man could not bear to be severed from his only companion, even though this involved a partnership in sin. He was not on this account less culpable, but sinned with his eyes open. And so the apostle does not say, "He did not sin," but "He was not deceived." For he shows that he sinned when he says, "By one man sin entered into the world,"89 and immediately after more distinctly, "In the likeness of Adam's transgression." But he meant that those are deceived who do not judge that which they do to be sin; but he knew. Otherwise how were it true "Adam was not deceived?" But having as yet no experience of the divine severity, he was possibly deceived in so far as he thought his sin venial. And consequently he was not deceived as the woman was deceived, but he was deceived as to the judgment which would be passed on his apology: "The woman whom thou gavest to be with me, she gave me, and I did eat."90 What need of saying more? Although they were not both deceived by credulity, yet both were entangled in the snares of the devil, and taken by sin.
If any one finds a difficulty in understanding why other sins do not alter human nature as it was altered by the transgression of those first human beings, so that on account of it this nature is subject to the great corruption we feel and see, and to death, and is distracted and tossed with so many furious and contending emotions, and is certainly far different from what it was before sin, even though it were then lodged in an animal body, – if, I say, any one is moved by this, he ought not to think that that sin was a small and light one because it was committed about food, and that not bad nor noxious, except because it was forbidden; for in that spot of singular felicity God could not have created and planted any evil thing. But by the precept He gave, God commended obedience, which is, in a sort, the mother and guardian of all the virtues in the reasonable creature, which was so created that submission is advantageous to it, while the fulfilment of its own will in preference to the Creator's is destruction. And as this commandment enjoining abstinence from one kind of food in the midst of great abundance of other kinds was so easy to keep, – so light a burden to the memory, – and, above all, found no resistance to its observance in lust, which only afterwards sprung up as the penal consequence of sin, the iniquity of violating it was all the greater in proportion to the ease with which it might have been kept.
Our first parents fell into open disobedience because already they were secretly corrupted; for the evil act had never been done had not an evil will preceded it. And what is the origin of our evil will but pride? For "pride is the beginning of sin."91 And what is pride but the craving for undue exaltation? And this is undue exaltation, when the soul abandons Him to whom it ought to cleave as its end, and becomes a kind of end to itself. This happens when it becomes its own satisfaction. And it does so when it falls away from that unchangeable good which ought to satisfy it more than itself. This falling away is spontaneous; for if the will had remained stedfast in the love of that higher and changeless good by which it was illumined to intelligence and kindled into love, it would not have turned away to find satisfaction in itself, and so become frigid and benighted; the woman would not have believed the serpent spoke the truth, nor would the man have preferred the request of his wife to the command of God, nor have supposed that it was a venial transgression to cleave to the partner of his life even in a partnership of sin. The wicked deed, then, – that is to say, the transgression of eating the forbidden fruit, – was committed by persons who were already wicked. That "evil fruit"92 could be brought forth only by "a corrupt tree." But that the tree was evil was not the result of nature; for certainly it could become so only by the vice of the will, and vice is contrary to nature. Now, nature could not have been depraved by vice had it not been made out of nothing. Consequently, that it is a nature, this is because it is made by God; but that it falls away from Him, this is because it is made out of nothing. But man did not so fall away93 as to become absolutely nothing; but being turned towards himself, his being became more contracted than it was when he clave to Him who supremely is. Accordingly, to exist in himself, that is, to be his own satisfaction after abandoning God, is not quite to become a nonentity, but to approximate to that. And therefore the holy Scriptures designate the proud by another name, "self-pleasers." For it is good to have the heart lifted up, yet not to one's self, for this is proud, but to the Lord, for this is obedient, and can be the act only of the humble. There is, therefore, something in humility which, strangely enough, exalts the heart, and something in pride which debases it. This seems, indeed, to be contradictory, that loftiness should debase and lowliness exalt. But pious humility enables us to submit to what is above us; and nothing is more exalted above us than God; and therefore humility, by making us subject to God, exalts us. But pride, being a defect of nature, by the very act of refusing subjection and revolting from Him who is supreme, falls to a low condition; and then comes to pass what is written: "Thou castedst them down when they lifted up themselves."94 For he does not say, "when they had been lifted up," as if first they were exalted, and then afterwards cast down; but "when they lifted up themselves" even then they were cast down, – that is to say, the very lifting up was already a fall. And therefore it is that humility is specially recommended to the city of God as it sojourns in this world, and is specially exhibited in the city of God, and in the person of Christ its King; while the contrary vice of pride, according to the testimony of the sacred writings, specially rules his adversary the devil. And certainly this is the great difference which distinguishes the two cities of which we speak, the one being the society of the godly men, the other of the ungodly, each associated with the angels that adhere to their party, and the one guided and fashioned by love of self, the other by love of God.
The devil, then, would not have ensnared man in the open and manifest sin of doing what God had forbidden, had man not already begun to live for himself. It was this that made him listen with pleasure to the words, "Ye shall be as gods,"95 which they would much more readily have accomplished by obediently adhering to their