Rom. I. 18
“For the wrath of God is revealed from Heaven against all ungodliness and unrighteousness of men, who hold down the truth in unrighteousness.”
Observe the discretion of Paul, how after encouraging by the gentler things, he turns his discourse to the more fearful. For after saying that the Gospel is the cause of salvation and of life, that it is the power of God, that it genders salvation and righteousness, he mentions what might well make them fear that were heedless of it. For since in general most men are not drawn so much by the promise of what is good as by the fear of what is painful, he draws them on both sides. For this cause too did God not only promise a kingdom, but also threaten hell. And the Prophets spoke thus with the Jews, ever intermingling the evil with the good. For this cause too Paul thus varies his discourse, yet not any how, but he sets first the good things, and after the evil, to show that the former came of the guiding purpose of God, but the latter of the wickedness of the backsliding. And in this way the prophet puts the good first, saying, “If you be willing and will obey me, you shall eat the good of the land: but if you be not willing and will not obey me, the sword shall devour you.” So here too does Paul conduct his discourse. But observe him; Christ, he means, came to bring forgiveness, righteousness, life, yet not in any way, but by the Cross, which is greatest too and wonderful, that He not only gave such things, but that He also suffered such things. If then ye insolently scorn the gifts, then will the penalties await you. And see how he raises his language, “For the wrath of God,” he says, “is revealed from heaven.” Whence does this appear? If it be a believer who says this, we will tell him of the declarations of Christ, but if the unbeliever and the Grecian, him Paul silences, by what he says presently of the judgment of God, bringing an uncontrovertible demonstration from the things which were done by them. And this too is by far the most striking point in him, how he exhibits those who speak against the truth, as themselves bearing witness by the things which they do daily, and say, to the doctrines of the truth. But of this in the sequel: but for the present, let us keep to what is set before us. “For the wrath of God is revealed from heaven.” And indeed even here this often takes place in famines and pestilences and wars: for each individually and all in common are punished. What will be the new thing then? That the chastisement will be greater, and common to all, and not by the same rules. For now what takes place is for correction; but then for vengeance. And this also St. Paul showed, when he said, “We are chastened now, that we should not be condemned with the world.” And now indeed to many such things usually seem to come not of the wrath from above, but of the malice of man. But then the punishment from God shall be manifest, when the Judge, sitting upon the fearful tribunal, shall command some to be dragged to the furnaces, and some to the outer darkness, and some to other inexorable and intolerable punishments. And why is it that he does not speak as plainly as this, the Son of God is coming with ten thousand angels, and will call each man to account, but says, that “the wrath of God is revealed?” His hearers were as yet novices, and therefore he draws them first by things quite allowed by them. And besides what is here mentioned, he also seems to me to be aiming against the Greeks. And this is why he makes his beginning from this, but afterwards he introduces the subject of Christ's judgment.
“Against all ungodliness and unrighteousness of men who hold the truth in unrighteousness.” Here he shows that the ways of ungodliness are many, and that of truth, one. For error is a thing various and multiform and compound, but the truth is one. And after speaking of doctrines he speaks of life, mentioning the unrighteousness of men. For there be various kinds of unrighteousness also. One is in money affairs, as when any one deals unrighteously by his neighbor in these; and another in regard to women, when a man leaves his own wife, and breaks in upon the marriage of another. For St. Paul calls this also defrauding, saying thus, “That no man go beyond or defraud his brother in the matter.” Others again injure not the wife or property, but the reputation of their neighbor, and this too is unrighteousness. For “a good name is better than great riches.” But some say that this also is said of Paul about doctrines. Still there is nothing to prevent its having been said of both. But what it is “to hold the truth in unrighteousness,” learn from the sequel.
Ver. 19. “Because that which may be known of God is manifest in them, for God has showed it unto them.”
But this glory they invested stocks and stones with. As then he which is entrusted with the goods of the king, and is ordered to spend them upon the king's glory, if he waste these upon robbers, and harlots, and witches, and make these splendid out of the king's stores, he is punished as having done the kingdom the greatest wrong. Thus they also who after having received the knowledge of God and of His glory, invested idols therewith, “held the truth in unrighteousness,” and, at least as far as was in their power, dealt unrighteously by the knowledge, by not using it upon fitting objects. Now, has what was said become clear to you, or must one make it still clearer? Perhaps it were needful to say somewhat more. What then is it which is here said? The knowledge of Himself God placed in men from the beginning. But this knowledge they invested stocks and stones with, and so dealt unrighteously to the truth, as far at least as they might. For it abides unchanged, having its own glory immutable. “And whence is it plain that He placed in them this knowledge, O Paul?” “Because,” says he, “that which may be known of Him is manifest in them.” This, however, is an assertion, not a proof. But do thou make it good, and show me that the knowledge of God was plain to them, and that they willingly turned aside. Whence was it plain then? Did He send them a voice from above? By no means. But what was able to draw them to Him more than a voice, that He did, by putting before them the Creation, so that both wise, and unlearned, and Scythian, and barbarian, having through sight learned the beauty of the things which were seen, might mount up to God. Wherefore he says,
Ver. 20. “For the invisible things of Him from the Creation of the world are clearly seen, being understood by the things which are made.”
Which also the prophet said, “The heavens declare the glory of God.” For what will the Greeks (i.e. Heathen) say in that day? That “we were ignorant of You?” Did ye then not hear the heaven sending forth a voice by the sight, while the well-ordered harmony of all things spoke out more clearly than a trumpet? Did ye not see the hours of night and day abiding unmoved continually, the goodly order of winter, spring, and the other seasons remaining both sure and unmoved, the tractableness (εὐγνωμοσύνην) of the sea amid all its turbulence and waves? All things abiding in order and by their beauty and their grandeur, preaching aloud of the Creator? For all these things and more than these does Paul sum up in saying, “The invisible things of Him from the creation of the world are clearly seen, being understood by the things which are made, even His eternal Power and Godhead; so that they are without excuse.” And yet it is not for this God has made these things, even if this came of it. For it was not to bereave them of all excuse, that He set before them so great a system of teaching, but that they might come to know Him. But by not having recognized Him they deprived themselves of every excuse, and then to show how they are bereaved of excuse, he says,
Ver. 21. “Because that, when they knew God, they glorified Him not as God.”
Source: Homilies on Romans (New Advent)