Far be it, then, from us to suppose that our first parents in Paradise felt that lust which caused them afterwards to blush and hide their nakedness, or that by its means they should have fulfilled the benediction of God, "Increase and multiply and replenish the earth;"112 for it was after sin that lust began. It was after sin that our nature, having lost the power it had over the whole body, but not having lost all shame, perceived, noticed, blushed at, and covered it. But that blessing upon marriage, which encouraged them to increase and multiply and replenish the earth, though, it continued even after they had sinned, was yet given before they sinned, in order that the procreation of children might be recognised as part of the glory of marriage, and not of the punishment of sin. But now, men being ignorant of the blessedness of Paradise, suppose that children could not have been begotten there in any other way than they know them to be begotten now, i. e. by lust, at which even honourable marriage blushes; some not simply rejecting, but sceptically deriding the divine Scriptures, in which we read that our first parents, after they sinned, were ashamed of their nakedness, and covered it; while others, though they accept and honour Scripture, yet conceive that this expression, "Increase and multiply," refers not to carnal fecundity, because a similar expression is used of the soul in the words, "Thou wilt multiply me with strength in my soul;"113 and so, too, in the words which follow in Genesis, "And replenish the earth, and subdue it," they understand by the earth the body which the soul fills with its presence, and which it rules over when it is multiplied in strength. And they hold that children could no more then than now be begotten without lust, which, after sin, was kindled, observed, blushed for, and covered; and even that children would not have been born in Paradise, but only outside of it, as in fact it turned out. For it was after they were expelled from it that they came together to beget children, and begot them.
But we, for our part, have no manner of doubt that to increase and multiply and replenish the earth in virtue of the blessing of God, is a gift of marriage as God instituted it from the beginning before man sinned, when He created them male and female, – in other words, two sexes manifestly distinct. And it was this work of God on which His blessing was pronounced. For no sooner had Scripture said, "Male and female created He them,"114 than it immediately continues, "And God blessed them, and God said unto them, Increase, and multiply, and replenish the earth, and subdue it," etc. And though all these things may not unsuitably be interpreted in a spiritual sense, yet "male and female" cannot be understood of two things in one man, as if there were in him one thing which rules, another which is ruled; but it is quite clear that they were created male and female, with bodies of different sexes, for the very purpose of begetting offspring, and so increasing, multiplying, and replenishing the earth; and it is great folly to oppose so plain a fact. It was not of the spirit which commands and the body which obeys, nor of the rational soul which rules and the irrational desire which is ruled, nor of the contemplative virtue which is supreme and the active which is subject, nor of the understanding of the mind and the sense of the body, but plainly of the matrimonial union by which the sexes are mutually bound together, that our Lord, when asked whether it were lawful for any cause to put away one's wife (for on account of the hardness of the hearts of the Israelites Moses permitted a bill of divorcement to be given), answered and said, "Have ye not read that He which made them at the beginning made them male and female, and said, For this cause shall a man leave father and mother, and shall cleave to his wife, and they twain shall be one flesh? Wherefore they are no more twain, but one flesh. What, therefore, God hath joined together, let not man put asunder."115 It is certain, then, that from the first men were created, as we see and know them to be now, of two sexes, male and female, and that they are called one, either on account of the matrimonial union, or on account of the origin of the woman, who was created from the side of the man. And it is by this original example, which God Himself instituted, that the apostle admonishes all husbands to love their own wives in particular.116
23. Whether generation should have taken place even in Paradise had man not sinned, or whether there should have been any contention there between chastity and lust.
But he who says that there should have been neither copulation nor generation but for sin, virtually says that man's sin was necessary to complete the number of the saints. For if these two by not sinning should have continued to live alone, because, as is supposed, they could not have begotten children had they not sinned, then certainly sin was necessary in order that there might be not only two but many righteous men. And if this cannot be maintained without absurdity, we must rather believe that the number of the saints fit to complete this most blessed city would have been as great though no one had sinned, as it is now that the grace of God gathers its citizens out of the multitude of sinners, so long as the children of this world generate and are generated.117
And therefore that marriage, worthy of the happiness of Paradise, should have had desirable fruit without the shame of lust, had there been no sin. But how that could be, there is now no example to teach us. Nevertheless, it ought not to seem incredible that one member might serve the will without lust then, since so many serve it now. Do we now move our feet and hands when we will to do the things we would by means of these members? do we meet with no resistance in them, but perceive that they are ready servants of the will, both in our own case and in that of others, and especially of artisans employed in mechanical operations, by which the weakness and clumsiness of nature become, through industrious exercise, wonderfully dexterous? and shall we not believe that, like as all those members obediently serve the will, so also should the members have discharged the function of generation, though lust, the award of disobedience, had been awanting? Did not Cicero, in discussing the difference of governments in his De Republica, adopt a simile from human nature, and say that we command our bodily members as children, they are so obedient; but that the vicious parts of the soul must be treated as slaves, and be coerced with a more stringent authority? And no doubt, in the order of nature, the soul is more excellent than the body; and yet the soul commands the body more easily than itself. Nevertheless this lust, of which we at present speak, is the more shameful on this account, because the soul is therein neither master of itself, so as not to lust at all, nor of the body, so as to keep the members under the control of the will; for if they were thus ruled, there should be no shame. But now the soul is ashamed that the body, which by nature is inferior and subject to it, should resist its authority.