20 Moreover the law entered, that the offence might abound. But where sin abounded, grace did much more abound:
[AD 202] Irenaeus on Romans 5:20
Ignorant, however, that "where sin abounded, grace did much more abound."
[AD 220] Tertullian on Romans 5:20
With what God? Him whose enemies we have never, in any dispensation, been? Or Him against whom we have rebelled, both in relation to His written law and His law of nature? Now, as peace is only possible towards Him with whom there once was war, we shall be both justified by Him, and to Him also will belong the Christ, in whom we are justified by faith, and through whom alone God's enemies can ever be reduced to peace. "Moreover," says he, "the law entered, that the offence might abound." And wherefore this? "In order," he says, "that (where sin abounded), grace might much more abound.

[AD 220] Tertullian on Romans 5:20
And wherefore this? "In order," he says, "that (where sin abounded), grace might much more abound." Whose grace, if not of that God from whom also came the law? Unless it be, forsooth, that the Creator intercalated His law for the mere purpose of producing some employment for the grace of a rival god, an enemy to Himself (I had almost said, a god unknown to Him), "that as sin had" in His own dispensation "reigned unto death, even so might grace reign through righteousness unto (eternal) life by Jesus Christ," His own antagonist! For this (I suppose it was, that) the law of the Creator had "concluded all under sin," and had brought in "all the world as guilty (before God)," and had "stopped every mouth," so that none could glory through it, in order that grace might be maintained to the glory of the Christ, not of the Creator, but of Marcion! I may here anticipate a remark about the substance of Christ, in the prospect of a question which will now turn up.

[AD 220] Tertullian on Romans 5:20
Else how unworthy it were of God to bring only a moiety of man to salvation-and almost less than that; whereas the munificence of princes of this world always claims for itself the merit of a plenary grace! Then must the devil be understood to be stronger for injuring man, ruining him wholly? and must God have the character of comparative weakness, since He does not relieve and help man in his entire state? The apostle, however, suggests that "where sin abounded, there has grace much more abounded." How, in fact, can he be regarded as saved, who can at the same time be said to be lost-lost, that is, in the flesh, but saved as to his soul? Unless, indeed, their argument now makes it necessary that the soul should be placed in a "lost" condition, that it may be susceptible of salvation, on the ground that is properly saved which has been lost.

[AD 220] Tertullian on Romans 5:20
Now, if the dominion of death operates only in the dissolution of the flesh, in like manner death's contrary, life, ought to produce the contrary effect, even the restoration of the flesh; so that, just as death had swallowed it up in its strength, it also, after this mortal was swallowed up of immortality, may hear the challenge pronounced against it: "O death, where is thy sting? O grave, where is thy victory? " For in this way "grace shall there much more abound, where sin once abounded." In this way also "shall strength be made perfect in weakness," -saving what is lost, reviving what is dead, healing what is stricken, curing what is faint, redeeming what is lost, freeing what is enslaved, recalling what has strayed, raising what is fallen; and this from earth to heaven, where, as the apostle teaches the Philippians, "we have our citizenship, from whence also we look for our Saviour Jesus Christ, who shall change our body of humiliation, that it may be fashioned like unto His glorious body" -of course after the resurrection, because Christ Himself was not glorified before He suffered.

[AD 253] Origen of Alexandria on Romans 5:20
What Paul means here is that after the natural law had already been established—the law which he calls the law of the mind, which assents to the law of God—another law arose, the law of our members, which promotes the lusts of the flesh and leads men captive, inclining them to desire and excesses, so that sin may abound in them.…Grace abounded all the more, because not only does it absolve us from the sins which we have already committed, it protects us against sinning in the future.

[AD 384] Ambrosiaster on Romans 5:20
An objector might say: “If the law merely served to increase sin, it should never have been given. If there was less sin before the law came, there was no need of the law.” Obviously the law was necessary to show that sins, which many thought they could get away with, actually counted before God and so that people might know what they ought to avoid.How could the law have increased sin, when it warns people not to sin?… The law began to show an abundance of sins, and the more it forbade them the more people committed them. That is why it is said that the law was given so that sin might increase.…
In order to nullify the pride of Satan, who rejoiced in his victory over man, the just and merciful God decreed that his Son would come to forgive every sin, so that there would be more happiness from the gift of grace than there had been sorrow from the coming of sin.… Therefore grace abounded more than sin.

[AD 390] Diodorus of Tarsus on Romans 5:20
Paul does not mean that the law increased the incidence of sin but rather that once it was given it uncovered sin and showed that it was more widespread than people had thought.

[AD 397] Ambrose of Milan on Romans 5:20
When evil had appeared and innocence had been destroyed, there was no one to do good, not even one. The Lord came to restore grace to nature, in fact to give it increase, that where sin abounded, grace might more abound.
[AD 397] Ambrose of Milan on Romans 5:20
Sin abounded by the law because through the law came knowledge of sin, and it became harmful for me to know what through my weakness I could not avoid. It is good to know beforehand what one is to avoid, but if I cannot avoid something, it is harmful to have known about it. Thus was the law changed to its opposite, yet it became useful to me by the very increase of sin, for I was humbled.

[AD 407] John Chrysostom on Romans 5:20
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."

He does not say did abound, but "did much more abound." For it was not remission from punishment only that He gave us, but that from sins, and life also. As if any were not merely to free a man with a fever from his disease, but to give him also beauty, and strength, and rank; or again, were not to give one an hungered nourishment only, but were to put him in possession of great riches, and were to set him in the highest authority. And how did sin abound? Some will say. The Law gave countless commands. Now since they transgressed them all, trangression became more abundant. Do you see what a great difference there is between grace and the Law? For the one became an addition to the condemnation, but the other, a further abundance of gifts. Having then mentioned the unspeakable munificence, he again discusses the beginning and the root both of death and of life. What then is the root of death? It is sin.

[AD 407] John Chrysostom on Romans 5:20
The law was not given in order for sin to abound, for it was given in order to diminish and destroy the offense. But it resulted in the opposite happening, not because of the nature of the law but because of the weakness of those who received it.…Grace abounded much more, because it gave us not only remission from punishment but forgiveness from sin as well, and in addition, new life.

[AD 418] Pelagius on Romans 5:20
The amount of sin has been revealed so that the greatness of grace might be known and so that we might pay back a corresponding debt of love.

[AD 430] Augustine of Hippo on Romans 5:20
By this Paul has clearly indicated that the Jews did not know by what dispensation the law had been given. It was not given in order to bring life, for grace brings life through faith, but the law was given to show with what great and tight chains those who thought they could fulfill all righteousness in their own strength were bound. So sin abounded, both because desire grew more ardent in the light of the prohibition and because the crime of trespass affected those who sinned against the law. Whoever considers the second of the four states of man will understand this.

[AD 430] Augustine of Hippo on Romans 5:20
Prohibition increased lust. It made it unconquered so that transgression might be added, which did not exist without the law, although there was sin.

[AD 430] Augustine of Hippo on Romans 5:20
Grace means that good works are now performed by those who had earlier done evil; it does not make them continue in evil in the belief that good will be given to them in return.

[AD 444] Cyril of Alexandria on Romans 5:20
The law entered in so that the many-sided nature of the fall of those who were under the law might be made clear. Nobody could ever be made righteous because of the weakness of human nature. Rather, everyone condemned themselves by their own crimes of transgression. The law came as the revealer of our common weakness, so that the human race would appear even more clearly to need the aid of the medicine of Christ.

[AD 458] Theodoret of Cyrus on Romans 5:20
Paul says that “the law came in” because he wants to show that God did not leave earlier generations destitute of his providence. But he also gave the law to the Jews, so that by their zeal and dedication to godliness they could act as a light to the other nations.

[AD 1274] Thomas Aquinas on Romans 5:20
After showing that through the gift of grace that sin is removed, which entered this world through Adam [n. 430], the Apostle now shows that through Christ’s grace is taken away the sin that increased when the Law came. Concerning this he does two things. First, he mentions the increase of sin through the Law; secondly, the absolution of sin through Christ’s grace, there [v.20b; n. 464] at And where sin abounded. 449. First, therefore, he says: It has been stated that through the obedience of one man many are made just. However, it was not the Law that could achieve this; rather, the law entered in secretly [subintravit] that sin might abound. 450. Two problems arise from these statements of the Apostle. 231 First, from the statement that the Law subintravit, i.e., entered secretly, "after original and actual sin or after the natural law," as the Gloss says. For the Law did not come in secretly but was given openly, in accord with John 18(:20), "I have not spoken in secret." The answer is that although the legislation had been given openly, the mysteries of the Law were hidden, especially in regard to God’s intention in promulgating the Law, which would point out sin without healing it: "Who has known the mind of the Lord?" (Rom 11: 34). It can also be said that the Law sub-intravit, i.e., entered into the middle, so to speak, between man’s sin and the gift of Christ’s grace, each of which he had said above passed from one [man] to many. 451. The second problem arises from the statement that the Law came in that sin might abound. For this would seem to make increase of sin the purpose of the Law; consequently, the Law would be evil, because a thing whose purpose is evil is itself evil. But this is contrary to the statement in 1 Tim 1(:8), "We know that the law is good." 452. A Gloss answers this in three ways [cf. n. 459, 460]. First, that the word that [ut] should be taken as indicating not a causal connection but a mere sequence. For the Law was not given in order that sins might increase; rather, the Law, as far as in it lay, forbade sin: "I have laid up thy word in my heart, that I might not sin against thee" (Ps 119:11). But, once the Law was given, increase of sin followed in two ways [cf. n. 458]. 232 453. In one way, as to the number of sins. For although the Law pointed out sin, it did not take away desire for sin [concupiscentia]. Indeed, when someone is forbidden what he desires, he burns with a stronger desire for it, as a torrent flows with greater force against an obstacle erected against it and finally breaks it. 454. There can be three reasons for this. First, because when something is subject to a man’s power he does not consider it anything great, whereas he perceives a thing beyond his power as great. But a prohibition against something desired puts that thing, as it were, beyond man’s power; consequently, the desire for it increases as long as it is prohibited. The second reason is that internal affections, when they are kept within and permitted no outlet, burn the more strongly within. This is clear in sorrow and anger which, when they are kept within, continually increase; but if they are given any kind of release outwardly, their vigor is dissipated. But a prohibition, since it threatens a penalty, compels man not to give outward expression to his desire, so that, being kept within, it burns more vigorously. The third reason is that anything not forbidden is regarded as something possible to do any time it pleases us; therefore, even when the opportunity is present, we often avoid doing it. But when something is forbidden, it is measured as something not capable of being ours at just any time; therefore, when the opportunity arises to obtain it without fear of punishment, we are readier to seize it. 455. These, then are the reasons why in the face of the Law, which forbade acts of concupiscence and yet did not mitigate that concupiscence, the concupiscence itself leads men more feverishly toward sin. Hence, it is stated in Ezekiel 5(:5), "This is Jerusalem; I 233 have set her in the center of the nations, with countries round about her. She wickedly rebelled against my ordinances more than the nations, and against my statutes more than the countries round about her." 456. But according to this it seems that every human law, which of course does not confer grace to lessen concupiscence, would make sin increase. However, that seems to be against the lawgiver’s intention, because his aim is to make the citizen good, as the Philosopher says in Ethics II. The answer is that the intention of human law is one thing and that of divine law another. For human law is subject to human judgment, which is concerned with external acts; but the divine law is subject to divine judgment, which is concerned with the inward movement of the heart, as is said in 1 Sam 16(:7), "Man looks on the outward appearance, but God looks at the heart." Accordingly, human law achieves its aim when by means of prohibitions and threats of punishment it prevents external sinful acts, even though the inward concupiscence increases more. But as far as the divine law is concerned, it imputes as sin even the inward evil desires, which increase when the law forbids them without destroying them. 457. Yet it should be noted, as the Philosopher says in Ethics X, that although a legal prohibition restrains the ill disposed from outward sins by the fear of punishment, it nevertheless guides the well disposed through love of virtue. Now that good disposition is present to a certain extent by nature, although its perfection is achieved only by grace. Consequently, even after the Old Law had been given, sin did not increase in all but in the majority. But some, guided by the law’s prohibitions and further strengthened by 234 grace, reached the heights of virtue: "Let us now praise glorious men…men great in virtue" (Sir 44:1). 458. Secondly [n. 453], with the coming of the Law sin abounded as far as the weight of guilt was concerned. For sin was more grievous when it became a transgression not only of the law of nature but also of the written law. Hence it was said above in 4(:15) that where there was no law there was no transgression. 459. A second answer [n. 452] is that the word that [ut] can be taken causally but in the sense that the Apostle is speaking of sin’s increase as far as our knowledge of it is concerned. As if to say: Law entered in secretly that sin might abound, i.e., that sin might be more abundantly known, according to the manner of speaking whereby something is said to come to pass when it is recognized. Hence, he said above (3:20) that through the law comes knowledge of sin. 460. The third answer also takes that [ut] in a causal sense, but not as meaning that increase of sin is the goal of the Law’s entering in, but what results from sin’s increase, namely, man’s humiliation. For after the Law came in, sin abounded, as was said in the first explanation. The consequence of this increase of sin was that man, recognizing his weakness, was humbled. For the proud man, presuming on his own strength, said: "There is no lack of doers, but of commanders," in accord with Ex 24(:7), "All that the Lord has spoken we will do and will be obedient." But when, after the Law had been given, the number of sins increased, men recognized how weak they were in observing the Law: "Man is weak and short-lived, with little understanding of judgment and laws" (Wis 9:5). 235 Therefore, God’s intention in giving the Law is not aimed at increasing sin but at man’s humility, for the sake of which he permitted sin to abound. Accordingly, because this [purpose] was hidden, he says that the law entered in secretly. 461. Since we are dealing with the Law and the end of the Law, two things propose themselves for consideration. First, the number of senses of the word "law"; secondly, what is the end of the law [n. 463]. In regard to the first it should be noted that "law," taken one way, names the entire scripture of the Old Testament; for example, John 15(:25) says, "It is to fulfill the word that is written in the law, that now they have sin and hated both me and my Father," when this was written in a Psalm [24:19]. But sometimes the "law" refers to the five books of Moses, in accord with Deut 33(:4), "Moses commanded us a law." Thirdly, the precepts of the Decalogue are called the "law": "I will give you the tables of stone, with the law and commandment, which I have written for their instruction" (Ex 24:12). Fourthly, the entire content of the ceremonial precepts is called the "law," as in Heb 10(:1), "Since the law has but a shadow of the good things to come." Fifthly, any definite ceremonial precept is called a "law," as in Lev (7:11): "This is the law of the sacrifice of peace offerings." But in this section of the epistle, the Apostle takes "law" in a general way, i.e., as referring to the total doctrine of the Mosaic Law, namely, the moral and ceremonial precepts, because through the ceremonies of the Law grace was not given help man fulfill the precepts and to reduce concupiscences. 463. In regard to the end of the Law it should be noted that among the Jewish people, as among every people, there were three kinds of men: the adamant, i.e., sinners 236 and rebels, the proficient and the perfect. With respect to the adamant the Law was given as a scourge both as to the moral precepts to whose observance they were compelled by threats of punishment, as is evident from Leviticus 2, and as to the ceremonial precepts, which were multiplied to prevent them from cultivating alien gods: "With a strong hand and outstretched arm, and with anger poured out I will rule over you" (Ezek 20:34). For the proficient, who are called the ordinary people [mediocres], the Law was a pedagogue: "The law was our pedagogue in Christ" (Ga1 3:24). It was so with respect to the ceremonial precepts, by which they were restrained in divine worship, and with respect to the moral precepts, by which they were advanced toward justice. For the perfect the Law regarding ceremonies was a sign: "I gave them my Sabbaths, as a sign between me and them, that they might know that I the Lord sanctify them" (Ezek 20:12); the Law regarding morals acted as a consolation, as expressed below (7:22); "I delight in the law of God." 464. Then when he says where sin abounded, he shows how increase of sin was taken away by grace. First, he sets out that grace abounded; secondly, the effect of abounding grace, there [n. 467] at that as sin has abounded. 465. First, therefore, he says: It has been stated that with the coming of the Law sin abounded. But this was no obstacle to the divine plan for the salvation of the Jews and of the whole human race, because where sin abounded, namely, in the human race and especially among the Jews, grace superabounded, namely, the grace of Christ forgiving sins: "God is powerful to make every grace abound in you" (2 Cor 9:8). 237 466. Two reasons can be given for what is said here. One is based on the effect of grace. For just as the enormity of a disease is not cured except by a strong and effective medicine, so an abundant grace was required to heal the abundance of sins: "Many sins are forgiven her, for she loved much" (Lk 7:47). The other reason is based on the attitude of the sinner. Some, realizing the enormity of their sins, give way to despair and contempt: "When wickedness comes, contempt comes also" (Pr 18:3); others by the help of divine grace are humbled when they consider their sins and so obtain a greater grace: "Their infirmities were multiplied; afterwards they made haste" (Ps 16:4). 467. Then when he says That as sin has reigned unto death, he shows the effect of abounding grace, an effect that corresponds by way of opposition to that of sin. That as sin, introduced by the first man and abounding through the Law, has reigned, i.e., obtained complete dominion over men, and this until it brought them unto death both temporal and eternal: "The wages of sin is death" (Rom 6:23) - grace also, i.e., God’s, might reign, i.e., rule entirely in us, by justice, which it produces in us: "They are justified by his grace" (Rom 3:24). And this until it brings us to eternal life: "The free gift of God is eternal life" (Rom 6:23). And all of this is through Jesus Christ our Lord, who is the giver of grace: "Grace and truth came through Jesus Christ" (Jn 1:17); he is justice: "Whom God made our righteousness" (1 Cor 1:30); and he is the giver of eternal life: "I give them eternal life" (Jn 10:28).