When Paul asserts that males and females changed among themselves the natural use of the creature into that which is unnatural, he validates the natural way.
Yes, and also in the first chapter of the epistle he authenticates nature, when he asserts that males and females changed among themselves the natural use of the creature into that which is unnatural, by way of penal retribution for their error.
"Therefore God handed them over to passions of dishonor. For even their women exchanged the natural use for that use which is outside nature. And in like manner the males also, having abandoned the natural use of the woman, were inflamed in their desire for one another, males working shamefulness with males, and receiving in themselves the wage which was due for their error. And as they did not approve of holding God in their knowledge, God handed them over to a reprobate mind, so that they do those things which are not fitting, being filled with all iniquity, malice, fornication, wickedness, avarice; full of envy, murders, strife, deceit, malignity; whisperers, detractors, hateful to God, insolent, proud, puffed up, inventors of evils, disobedient to parents, senseless, disorderly; without natural affection, without covenant, without mercy. And these, though they had come to know the justice of God, did not understand that those who do such things are worthy of death; and not only those who do them, but also those who consent to those who do them. Therefore you are inexcusable, O every man who judges; for in that wherein you judge another, you condemn yourself. For you do the same things which you judge." This is the third time that we find set down by the Apostle: "God handed them over." And for the first handing-over he gave the causes, namely, "Because, when they had known God, they did not glorify him as God, nor give thanks; but they became empty in their thoughts, and their senseless heart was darkened. For saying that they were wise, they became fools, and they exchanged the glory of the incorruptible God for the likeness of the image of corruptible man, and of birds, and of four-footed beasts, and of serpents." "Therefore," he says, "God handed them over, in the desires of their heart, to uncleanness, so that they should treat their own bodies with dishonor among themselves." The cause of the second handing-over he seems to put forward when he says that "they exchanged the truth of God for a lie, and worshipped and served the creature rather than the Creator." "Therefore," he says, "God handed them over to passions of dishonor." Yet this second handing-over seems to be liable to graver outrages. "For their women," he says, "exchanged the natural use for that use which is outside nature. In like manner the males also, having abandoned the natural use of the woman, were inflamed in their desire for one another, males working shamefulness with males, and receiving in themselves the wage which was due for their error." He seems also to give the causes of the third handing-over when he says: "And as they did not approve of holding God in their knowledge, God handed them over to a reprobate mind, so that they do those things which are not fitting, being filled with all iniquity, malice," and the rest of the crimes which he goes on to enumerate. But these distinctions among the causes do not seem to me to correspond sufficiently to the offenses which are subjoined to each one of them. For how is he who serves the creature handed over to fouler outrages more than he who exchanged the glory of the incorruptible God for the likeness of the image of corruptible man, and of birds, and of four-footed beasts, and of serpents? Or how are those who did not approve of holding God in their knowledge handed over, beyond both of these, to what is as it were a whole swarm of evils? Hence it seems to me rather that all these causes, which are set before the several handings-over, are to be heaped together into one, and again the kinds of handing-over into one, so that (for the sake of argument) we should speak thus: Since indeed men exchanged the glory of the incorruptible God for the likeness of the image of corruptible man, and of birds, and of four-footed beasts, and of serpents; and since they exchanged the truth of God for a lie, and worshipped and served the creature rather than the Creator, nor did they approve of holding God in their knowledge: on account of all these things God handed them over, in the desires of their heart, to uncleanness, so that they should treat their bodies with dishonor; and he handed them over to passions of dishonor, so that their women exchanged the natural use for that which is outside nature; and in like manner the males also, having abandoned the natural use of the woman, were inflamed in their desire for one another, males working shamefulness with males. But he also handed them over to a reprobate mind, so that they do those things which are not fitting, because they were filled with all iniquity, malice, wickedness and avarice, and were full of envy, murders, strife, deceit, and the other evils which are written; and because, when they had come to know the justice of God, they did not understand that this is what it is — that those who do such things are worthy of death, not only those who do them, but also those who consent to those who do them. And therefore, for all these evils they will be inexcusable, so long as they both judge and condemn others for the very crimes which they themselves commit. For a man pronounces sentence upon himself when he punishes another for the things which he himself commits. But I think that what was said above concerning the manner of the handing-over is sufficient — how God is said to hand over those whose deeds and whose mind, turning aside from him and indulging in vices, he abhors and abandons; and I consider it superfluous to repeat the same things. There are, however, two things which I judge to be indicated in this passage, of which the one seems to be signified by means of the other. For it is certain that, if God has handed anyone over either to the desires of his own heart, or to passions of dishonor, or to a reprobate mind, at once, as in the worst and reprobate soil, that whole harvest of crimes springs up in him who is handed over. And again, if anyone, though he has known God, does not glorify him as God nor give thanks, but is such a man as the apostolic discourse has described point by point, there is no doubt that a soul of this kind has been abandoned by God and handed over. For it is not possible that God should have his dwelling together with these evils, or that these evils should proceed from the place where God dwells. But since in these three the Apostle seems to have enumerated all the kinds of impiety — both of those who worship idols, and of those who serve the creature rather than the Creator, and also of those who did not approve of holding God in their knowledge — and since under the first of these headings the pagans generally are designated, and under the second their wise men and philosophers: I think that under this third are indicated the heretics, who either deny God the Creator, or utter various blasphemies against the Most High. Therefore, if each one of those whom we have said above to err in the worship of the Godhead is designated by such titles of evils, let us who seem to be in the Church and to hold the right faith examine ourselves, and weigh with all circumspection whether perhaps, separated from these men only by the name of the true worship, we may be associated with them in the very same deeds and acts. For it is certain that he who (for example) is filled with iniquity, malice, wickedness, avarice, has not approved of holding God in his knowledge, and is of the number of those whom God handed over to a reprobate mind. And again, those whose women, or whose males, having abandoned the natural use, are inflamed toward that use which is against nature — it is certain that they are of the number of those who serve the creature rather than the Creator, and whom God handed over to passions of dishonor. And likewise, if any treat their bodies with dishonor in uncleanness, they are of those who exchanged the glory of the incorruptible God for the likeness of the image of man; except that he who is already a believer defiles the temple of God by a graver sacrilege than the man still profane defiles the temple of idols. Nor indeed should this apostolic saying be passed over, in which, when he says that "they exchanged the glory of the incorruptible God for the likeness of the image of man," he is to be understood not only as reproving those who worship idols, but also as refuting the Anthropomorphites, who, though placed within the Church, say that the bodily image of man is the image of God — being ignorant of what is written in Genesis, that man was made to the image of God: and what is to be thought concerning that man is expounded by the Apostle when he says: "Putting off the old man with his deeds, and putting on the new, who is created according to God." Do you hear that he calls the new man the one created according to God? And this same new man he elsewhere calls the interior man; but this corruptible one, whose image he here rejects, he names the exterior, when he says: "For even if our man who is without is corrupted, yet he who is within is renewed." And that those who go astray concerning the image of God may know his meaning still more plainly, let them hear whom the Apostle says to be the man who is created to the image of God, when he writes to the Colossians in this manner: "Do not lie," he says, "stripping yourselves of the old man with his deeds, and putting on the new, who is renewed in knowledge according to the image of him who created him." From which he evidently shows that the interior man, who is renewed through knowledge, is himself created to the image of God. But those who say that the exterior man, that is, the bodily and corruptible one, is to the image of God, are associated by the Apostle with those "who exchanged the glory of the incorruptible God for the likeness of the image of corruptible man." Truly it was fitting that not even these things should be omitted in the explanation of the apostolic discourse, so that in this chapter of the Apostle, as also in very many others, the Anthropomorphites — that is, those who say that the bodily image of man is the image of God — might recognize themselves to have been convicted and refuted. But let us now conclude with these things the contents of the first volume.
Would those so condemned not have remained in the lusts of their hearts, even if they had not been given up to them by God? Would they not have fallen into dishonorable passions, even if they had not been given up to them by God? Would they not have fallen into an unfit mind quite apart from being given up to it by God?
Oh, if placed on that lofty watch-tower you could gaze into the secret places-if you could open the closed doors of sleeping chambers, and recall their dark recesses to the perception of sight,-you would behold things done by immodest persons which no chaste eye could look upon; you would see what even to see is a crime; you would see what people embruted with the madness of vice deny that they have done, and yet hasten to do,-men with frenzied lusts rushing upon men, doing things which afford no gratification even to those who do them. I am deceived if the man who is guilty of such things as these does not accuse others of them. The depraved maligns the depraved, and thinks that he himself, though conscious of the guilt, has escaped, as if consciousness were not a sufficient condemnation. The same people who are accusers in public are criminals in private, condemning themselves at the same time as they condemn the culprits; they denounce abroad what they commit at home, willingly doing what, when they have done, they accuse,-a daring which assuredly is fitly mated with vice, and an impudence quite in accordance with shameless people. And I beg you not to wonder at the things that persons of this kind speak: the offence of their mouths in words is the least of which they are guilty.
Paul tells us that these things came about, that a woman should lust after another woman, because God was angry at the human race because of its idolatry. Those who interpret this differently do not understand the force of the argument. For what is it to change the use of nature into a use which is contrary to nature, if not to take away the former and adopt the latter, so that the same part of the body should be used by each of the sexes in a way for which it was not intended? Therefore, if this is the part of the body which they think it is, how could they have changed the natural use of it if they had not had this use given to them by nature? This is why he said earlier that they had been handed over to uncleanness, even though he did not explain in detail what he meant by that.
All these affections then were vile, but chiefly the mad lust after males; for the soul is more the sufferer in sins, and more dishonored, than the body in diseases. But behold how here too, as in the case of the doctrines, he deprives them of excuse, by saying of the women, that "they changed the natural use." For no one, he means, can say that it was by being hindered of legitimate intercourse that they came to this pass, or that it was from having no means to fulfil their desire that they were driven into this monstrous insaneness. For the changing implies possession. Which also when discoursing upon the doctrines he said, "They changed the truth of God for a lie." And with regard to the men again, he shows the same thing by saying, "Leaving the natural use of the woman." And in a like way with those, these he also puts out of all means of defending themselves by charging them not only that they had the means of gratification, and left that which they had, and went after another, but that having dishonored that which was natural, they ran after that which was contrary to nature. But that which is contrary to nature hath in it an irksomeness and displeasingness, so that they could not fairly allege even pleasure. For genuine pleasure is that which is according to nature. But when God hath left one, then all things are turned upside down. And thus not only was their doctrine Satanical, but their life too was diabolical. Now when he was discoursing of their doctrines, he put before them the world and man's understanding, telling them that, by the judgment afforded them by God, they might through the things which are seen, have been led as by the hand to the Creator, and then, by not willing to do so, they remained inexcusable. Here in the place of the world he sets the pleasure according to nature, which they would have enjoyed with more sense of security and greater glad-heartedness, and so have been far removed from shameful deeds. But they would not; whence they are quite out of the pale of pardon, and have done an insult to nature itself. And a yet more disgraceful thing than these is it, when even the women seek after these intercourses, who ought to have more sense of shame than men. And here too the judgment of Paul is worthy of admiration, how having fallen upon two opposite matters he accomplishes them both with all exactness. For he wished both to speak chastely and to sting the hearer. Now both these things were not in his power to do, but one hindered the other. For if you speak chastely you shall not be able to bear hard upon the hearer. But if you are minded to touch him to the quick, you are forced to lay the naked facts before him in plain terms. But his discreet and holy soul was able to do both with exactness, and by naming nature has at once given additional force to his accusation, and also used this as a sort of veil, to keep the chasteness of his description. And next, having reproached the women first, he goes on to the men also, and says, "And likewise also the men leaving the natural use of the woman." Which is an evident proof of the last degree of corruptness, when both sexes are abandoned, and both he that was ordained to be the instructor of the woman, and she who was bid to become an helpmate to the man, work the deeds of enemies against one another. And reflect too how significantly he uses his words. For he does not say that they were enamoured of, and lusted after one another, but, "they burned in their lust one toward another." You see that the whole of desire comes of an exorbitancy which endureth not to abide within its proper limits. For everything which transgresseth the laws by God appointed, lusteth after monstrous things and not those which be customary. For as many oftentimes having left the desire of food get to feed upon earth and small stones, and others being possessed by excessive thirst often long even for mire, thus these also ran into this ebullition of lawless love. But if you say, and whence came this intensity of lust? It was from the desertion of God: and whence is the desertion of God? from the lawlessness of them that left Him; "men with men working that which is unseemly." Do not, he means, because you have heard that they burned, suppose that the evil was only in desire. For the greater part of it came of their luxuriousness, which also kindled into flame their lust. And this is why he did not say being swept along or being overtaken, an expression he uses elsewhere; but what? working. They made a business of the sin, and not only a business, but even one zealously followed up. And he called it not lust, but that which is unseemly, and that properly. For they both dishonored nature, and trampled on the laws. And see the great confusion which fell out on both sides. For not only was the head turned downwards but the feet too were upwards, and they became enemies to themselves and to one another, bringing in a pernicious kind of strife, and one even more lawless than any civil war, and one rife in divisions, and of varied form. For they divided this into four new, and lawless kinds. Since (whence) this war was not twofold or threefold, but even fourfold. Consider then. It was meet, that the twain should be one, I mean the woman and the man. For "the twain," it says, "shall be one flesh." (Gen. ii. 24.) But this the desire of intercourse effected, and united the sexes to one another. This desire the devil having taken away, and having turned the course thereof into another fashion, he thus sundered the sexes from one another, and made the one to become two parts in opposition to the law of God. For it says, "the two shall be one flesh;" but he divided the one flesh into two: here then is one war. Again, these same two parts he provoked to war both against themselves and against one another. For even women again abused women, and not men only. And the men stood against one another, and against the female sex, as happens in a battle by night. You see a second and third war, and a fourth and fifth; there is also another, for beside what have been mentioned they also behaved lawlessly against nature itself. For when the Devil saw that this desire it is, principally, which draws the sexes together, he was bent on cutting through the tie, so as to destroy the race, not only by their not copulating lawfully, but also by their being stirred up to war, and in sedition against one another.
Because of the reasons given above, they were abandoned to their disgraceful behavior. Those who turned against God turned everything on its head. For those who forsook the author of nature could not keep to the order of nature.
Again he says that God "gave them over to passions" because they served the creature. Just as in the doctrine of God they became corrupt, having abandoned the guidance of creation, so also in their life they became abominable, having abandoned natural pleasure (which is the most convenient and pleasant of all) and having given themselves over to unnatural pleasure (which is the most difficult and unpleasant of all). This is what the word "exchanged" means, which shows that they abandoned what they had and chose something else. Thus he presents nature, which they transgressed, as a great accuser of both sexes.
In the first word: You shall not have strange gods before me, all profane pacts with demons are prohibited, whether they be made through incantations of words, or through inscriptions of characters or images, or through immolations of sacrifices. In these three consist all the parts of the magical art. And thus by prohibiting these three, all things are prohibited from which all profane pacts with demons arise, whether they be made for the transmutation of natures, as the magicians of Pharaoh did; or for the deception of the senses, as illusionists do; or for the investigation of future contingencies. All these Augustine calls pacts with demons, because in such things there is attributed to the creature what ought to be attributed to the Creator. Concerning such persons it is said: They provoked him with strange gods, and stirred him to anger with him who was not God. Whence such persons fall into the hands of demons; the Apostle: God delivered them up to shameful passions, that is, he permitted them to be delivered up, their sins demanding it.
Having set forth the sin of ungodliness, according to which they have sinned against the divine nature, he now sets forth the punishment whereby they have been reduced to sinning against their own nature. First, he mentions the punishment; second, he explains it, at for their women; third, its fittingness, at and receiving in themselves.
Therefore, he says for this cause, i.e., because they exchanged the truth about God for a lie, God delivered them up not, of course, by impelling them to evil but by abandoning them to shameful affections, i.e., sins against nature, which are called passions in the sense that a passion implies that a thing is drawn outside the order of its own nature, as when water becomes hot or when a man becomes sick. Hence, because man departs from the natural order, when he commits such sins, they are fittingly called passions, as in Romans: the passions of sins (Rom 7:5). They are called shameful affections, because their acts are not worthy of man: it is a shame even to speak of the things that they do in secret (Eph 5:12). For if sins of the flesh are shameful, because through them man is lowered to what is bestial in him, much more so are sins against nature, through which man sinks below the bestial: I will change his glory into shame (Hos 4:7).
Then when he says for their women he explains his statement. First, in regard to women; second, in regard to men, at and, in like manner, the men also. He says therefore first: the reason why I say that they have been given up to dishonorable passions is that their women have changed the natural use into that use which is against nature. Does not nature itself teach you? (1 Cor 11:14); they have transgressed the laws, broken the everlasting covenant, i.e., the natural law (Isa 24:5).
It should be noted that something is against man's nature in two ways: in one way, against the nature of what constitutes man, i.e., rationality. In this way, every sin is said to be against man's nature, inasmuch as it is against right reason. Hence, Damascene says that an angel in sinning was turned from what is according to nature into what is contrary to nature. In another way, something is said to be against man's nature by reason of his general class, which is animal. Now it is obvious that according to the intent of nature, sexual union in animals is ordained to the act of generation; hence, every form of union from which generation cannot follow is against the nature of animal as animal. In line with this it is stated in the Gloss that the natural use is that a man and a woman come together in one copulation, but it is against nature that a man pollute a man and a woman a woman. The same is true of every act of intercourse from which generation cannot follow.