Genesis 21:19

Before they had thus violated their obedience they were pleasing to God, and God was pleasing to them; and though they carried about an animal body, they yet felt in it no disobedience moving against themselves. This was the righteous appointment, that inasmuch as their soul had received from the Lord the body for its servant, as it itself obeyed the Lord, even so its body should obey Him, and should exhibit a service suitable to the life given it without resistance. Hence “they were both naked, and were not ashamed.” It is with a natural instinct of shame that the rational soul is now indeed affected, because in that flesh, over whose service it received the right of power, it can no longer, owing to some indescribable infirmity, prevent the motion of the members thereof, notwithstanding its own unwillingness, nor excite them to motion even when it wishes. …

Now, this being the real state of the question, they undoubtedly err who suppose that, when fleshly lust is censured, marriage is condemned; as if the malady of concupiscence was the outcome of marriage and not of sin. Were not those first spouses, whose nuptials God blessed with the words, “Be fruitful and multiply,” naked, and yet not ashamed? Why, then, did shame arise out of their members after sin, except because an indecent motion arose from them, which, if men had not sinned, would certainly never have existed in marriage? Or was it, forsooth, as some hold (who give little heed to what they read), that human beings were, like dogs, at first created blind; and, absurder still, obtained sight, not as dogs do, by growing, but by sinning? Far be it from us to entertain such an opinion. …

For they did not use for themselves tunics to cover their whole bodies after their sin, but aprons, which some of the less careful of our translators have translated as “coverings.” And this indeed is true; but “covering” is a general name, by which may be understood every kind of clothing and veil. And ambiguity ought to be avoided, so that, as the Greek called them περιζώματα , by which only the shameful parts of the body are covered, so also the Latin should either use the Greek word itself, because now custom has come to use it instead of the Latin, or, as some do, use the word aprons, or, as others have better named them, wrestling aprons. …

7. Thus brought up and trained, as even now those should be who are to preside over the people, and take the direction of the mighty body of Christ, according to the will and foreknowledge of God, which lays long before the foundations of great deeds, he was invested with this important ministry, and made one of those who draw near to the God Who draws near to us, and deemed worthy of the holy office and rank, and, after passing through the entire series of orders, he was (to make my story short) entrusted with the chief rule over the people, in other words, the charge of the whole world: nor can I say whether he received the priesthood as the reward of virtue, or to be the fountain and life of the Church. …