Ver. 17. “For if by one man's offense death reigned by one, much more they which receive abundance of grace and of the gift and (so Field with most manuscripts) of righteousness shall reign in life by one, Jesus Christ.”
What he says, amounts to this nearly. What armed death against the world? The one man's eating from the tree only. If then death attained so great power from one offense, when it is found that certain received a grace and righteousness out of all proportion to that sin, how shall they still be liable to death? And for this cause, he does not here say “grace,” but “superabundance of grace.” For it was not as much as we must have to do away the sin only, that we received of His grace, but even far more. For we were at once freed from punishment, and put off all iniquity, and were also born again from above and rose again with the old man buried, and were redeemed, justified, led up to adoption, sanctified, made brothers of the Only-begotten, and joint heirs and of one Body with Him, and counted for His Flesh, and even as a Body with the Head, so were we united unto Him! All these things then Paul calls a “superabundance” of grace, showing that what we received was not a medicine only to countervail the wound, but even health, and comeliness, and honor, and glory and dignities far transcending our natural state. And of these each in itself was enough to do away with death, but when all manifestly run together in one, there is not the least vestige of it left, nor can a shadow of it be seen, so entirely is it done away. As then if any one were to cast a person who owed ten mites (ὀ βόλους) into prison, and not the man himself only, but wife and children and servants for his sake; and another were to come and not to pay down the ten mites only, but to give also ten thousand talents of gold, and to lead the prisoner into the king's courts, and to the throne of the highest power, and were to make him partaker of the highest honor and every kind of magnificence, the creditor would not be able to remember the ten mites; so has our case been. For Christ has paid down far more than we owe, yea as much more as the illimitable ocean is than a little drop. Do not then, O man, hesitate as you see so great a store of blessings, nor enquire how that mere spark of death and sin was done away, when such a sea of gifts was brought in upon it. For this is what Paul intimated by saying that “they who have received the abundance of the grace and righteousness shall reign in life.” And as he had now clearly demonstrated this, he again makes use of his former argument, clenching it by taking up the same word afresh, and saying that if for that offense all were punished, then they may be justified too by these means. And so he says,
Ver. 18. “Therefore as by the offense of one judgment came upon all men to condemnation; even so by the righteousness of One the free gift came upon all men unto justification of life.”
And he insists again upon it, saying,
Ver. 19. For as by one man's disobedience many were made sinners, so by the obedience of One shall many be made righteous.
What he says seems indeed to involve no small question: but if any one attends to it diligently, this too will admit of an easy solution. What then is the question? It is the saying that through the offense of one many were made sinners. For the fact that when he had sinned and become mortal, those who were of him should be so also, is nothing unlikely. But how would it follow that from his disobedience another would become a sinner? For at this rate a man of this sort will not even deserve punishment, if, that is, it was not from his own self that he became a sinner. What then does the word “sinners” mean here? To me it seems to mean liable to punishment and condemned to death. Now that by Adam's death we all became mortals, he had shown clearly and at large. But the question now is, for what purpose was this done? But this he does not go on to add: for it contributed nothing to his present object. For it is against a Jew that the contest is, who doubted and made scorn of the righteousness by One. And for this reason after showing that the punishment too was brought in by one upon all, the reason why this was so he has not added. For he is not for superfluities, but keeps merely to what is necessary. For this is what the principles of disputation did not oblige him to say any more than the Jew; and therefore he leaves it unsolved. But if any of you were to enquire with a view to learn, we should give this answer: That we are so far from taking any harm from this death and condemnation, if we be sober-minded, that we are the gainers even by having become mortal, first, because it is not an immortal body in which we sin; secondly, because we get numberless grounds for being religious (φιλοσοφίας). For to be moderate, and to be temperate, and to be subdued, and to keep ourselves clear of all wickedness, is what death by its presence and by its being expected persuades us to. But following with these, or rather even before these, it has introduced other greater blessings besides. For it is from hence that the crowns of the martyrs come, and the rewards of the Apostles. Thus was Abel justified, thus was Abraham, in having slain his son, thus was John, who for Christ's sake was taken off, thus were the Three Children, thus was Daniel. For if we be so minded, not death only, but even the devil himself will be unable to hurt us. And besides there is this also to be said, that immortality awaits us, and after having been chastened a little while, we shall enjoy the blessings to come without fear, being as if in a sort of school in the present life, under instruction by means of disease, tribulation, temptations, and poverty, and the other apparent evils, with a view to our becoming fit for the reception of the blessings of the world to come.
Ver. 20. “Moreover the Law entered: that the offense might abound.”
Since then he had shown that the world was condemned from Adam, but from Christ was saved and freed from condemnation, he now seasonably enters upon the discussion of the Law, here again undermining the high notions of it. For it was so far from doing any good, he means, or from being any way helpful, but the disorder was only increased by its having come in. But the particle “that” again does not assign the cause, but the result. For the purpose of its being given was not “in order that” it might abound, for it was given to diminish and destroy the offense. But it resulted the opposite way, not owing to the nature of the Law, but owing to the listlessness of those who received it. But why did he not say the Law was given, but “the Law entered by the way?” It was to show that the need of it was temporary, and not absolute or imperative. And this he says also to the Galatians, showing the very same thing another way. “For before faith came,” he says, “we were kept under the Law, shut up unto the faith which should afterwards be revealed.” And so it was not for itself, but for another, that it kept the flock. For since the Jews were somewhat gross-minded, and enervated, and indifferent to the gifts themselves, this was why the Law was given, that it might convict them the more, and clearly teach them their own condition, and by increasing the accusation might the more repress them. But be not thou afraid, for it was not that the punishment might be greater that this was done, but that the grace might be seen to be greater. And this is why he proceeds,
“But where sin abounded, grace did much more abound.”
Source: Homilies on Romans (New Advent)