Let no sin therefore reign in your mortal body, so as to obey the lusts thereof.

“If, therefore, flesh and blood are the things which procure for us life, it has not been declared of flesh and blood, in the literal meaning (proprie) of the terms, that they cannot inherit the kingdom of God; but [these words apply] to those carnal deeds already mentioned, which, perverting man to sin, deprive him of life. And for this reason he says, in the Epistle to the Romans: "Let not sin, therefore, reign in your mortal body, to be under its control: neither yield ye your members instruments of unrighteousness unto sin; but yield yourselves to God, as being alive from the dead, and your members as instruments of righteousness unto God." In these same members, therefore, in which we used to serve sin, and bring forth fruit unto death, does He wish us to [be obedient] unto righteousness, that we may bring forth fruit unto life.”

“He does not say, let not the flesh live or act, but, "let not sin reign," for He came not to destroy our nature, but to set our free choice aright. Then to show that it is not through any force or necessity that we are held down by iniquity, but willingly, he does not say, let it not tyrannize, a word that would imply a necessity, but let it not reign. For it is absurd for those who are being conducted to the kingdom of heaven to have sin empress over them, and for those who are called to reign with Christ to choose to be the captives of sin, as though one should hurl the diadem from off his head, and choose to be the slave of a frantic woman, who came begging, and was clothed in rags. Next since it was a heavy task to get the upper hand of sin, see how he shows it to be even easy, and how he allays the labor by saying, "in your mortal body." For this shows that the struggles were but for a time, and would soon bring themselves to a close. At the same time he reminds us of our former evil plight, and of the root of death, as it was from this that, contrary even to its beginning, it became mortal. Yet it is possible even for one with a mortal body not to sin. Do you see the abundancy of Christ's grace? For Adam, though as yet he had not a mortal body, fell. But thou, who hast received one even subject to death, canst be crowned. How then, is it that "sin reigns?" he says. It is not from any power of its own, but from thy listlessness. Wherefore after saying, "let it not reign," he also points out the mode of this reigning, by going on to say "that ye should obey it in the lusts thereof." For it is not honor to concede to it (i.e. to the body) all things at will, nay, it is slavery in the extreme, and the height of dishonor; for when it doth what it listeth, then is it bereft of all liberties; but when it is put under restraints, then it best keeps its own proper rank.”

“The reign of sin is overthrown and destroyed, partly by such an amendment on the part of men that the flesh is made subject to the spirit and partly by the condemnation of those who are persevering in sin, in order that they might be so justly restrained that they cannot be troublesome to the righteous, who reign with Christ.”

“After the Apostle has shown that we must not remain in sin, and that we have the capacity for this, here he concludes with a moral exhortation. And concerning this he does three things: first, he sets forth the admonition; second, he assigns the reason, at the place, "for sin," etc.; third, he raises a question and resolves it, at the place, "What then? Shall we sin?" etc. Concerning the first he does two things: first he sets forth the admonition; second he expounds it, at the place, "that you should obey," etc. He says therefore first: it has been said that our old man was crucified together with him, that the body of sin might be destroyed, by which it is given to be understood that the power of sin has been so diminished that it cannot have dominion over us. Therefore let not sin, for the rest, reign in your mortal body. But he does not say: let there be no sin in your mortal body, because as long as our body is mortal, that is, subject to the necessity of death, it cannot be that there is not sin in our body, that is, the tinder of sin. But since we have been freed by God from the reign of sin, we ought to strive that sin, having already lost its dominion in our body, should not recover it in us. And this is what he means when he says, "let not sin reign in your mortal body." And this indeed must be guarded against as long as we bear a mortal body, because it is said in Wisdom 9:15: "the corruptible body is a load upon the soul," etc. Then, when he says, "that you should obey," etc., he expounds the aforesaid admonition. Concerning which it must be considered that sin reigns in man in two ways. In one way, through the interior consent of the mind. And removing this he says, "that you should obey the lusts thereof." For to obey, by the mind's consent, the lusts of sin, is for sin to reign in us. Ecclesiasticus 18:30: "Go not after your lusts." In the second way, sin reigns in us through the execution of the deed. And to exclude this he adds, "but neither yield you your members to sin," that is, to the tinder of sin, "as instruments of iniquity," that is, instruments for carrying out iniquity. For when man, through his members, carries out sin, he carries it out unto iniquity; and by this very act he seems to be fighting to restore the dominion of sin, which grows strong in us through the habit of sinning. Ezekiel 32:27: "they went down to hell with their weapons." Then, when he says, "but present yourselves to God," etc., he exhorts to the contrary, namely that we should present ourselves to God. And first as to interior affection, when he says, "but present yourselves to God," namely that your mind should be subjected to him. Deuteronomy 10:12: "And now, Israel, what does the Lord your God require of you, but that you fear the Lord your God, and walk in his ways?" And this you ought to do as those who are alive from the dead, that is, as those brought back to the life of grace from the death of fault. For this is also why it is just that he who lives should now no longer live for himself, but for him who died for all, 2 Corinthians 5:15. Second, as to the exterior act, whence he says: "present your members to God," that is, for his service, "as instruments of justice," that is, certain instruments for carrying out justice, by which, namely, you may fight against the enemies of God. Ephesians, last chapter: "Put on the armor of God, that you may be able to stand against the deceits of the devil." Then, when he says, "for sin," etc., he assigns the reason for the aforesaid admonition. For someone could excuse himself, alleging the dominion of sin, by which he might assert that he was hindered from observing the aforesaid admonition. This, therefore, the Apostle first excludes, saying, "for sin shall not have dominion over you," namely if you begin to resist sin and to present yourselves to God, according to that word of James 6:8: "Draw near to God, and he will draw near to you: resist the devil, and he will flee from you." As if to say: you are able to observe the aforesaid things for this reason, that you do not find sin having dominion over you, by which you could be drawn back; for we have been freed by Christ, according to that word of John 8:36: "if the Son shall make you free, you shall be free indeed." Second, he makes clear what he had said, saying, "for you are not under the law, but under grace." Here it must be considered that he is not speaking here of the law only as regards the ceremonial precepts, but also as regards the moral precepts; and someone is said to be under this law in two ways. In one way, as one voluntarily subject to the observance of the law. And in this way even Christ was under the law, according to that word of Galatians 4:4: "made under the law"; because, namely, he observed the law, not only as regards the moral precepts, but also as regards the ceremonial precepts. But the faithful of Christ are indeed under the law in this way as regards the moral precepts, but not as regards the ceremonial precepts. In another way someone is said to be under the law as one compelled by the law; and in this sense he is said to be under the law who is compelled to observe the law not voluntarily out of love, but out of fear. Such a one, however, lacks grace, which, if it were present, would incline the will to the observance of the law, so that out of love he would fulfill its moral precepts. Thus, therefore, as long as someone is under the law in such a way that he does not fulfill the law voluntarily, sin has dominion in him, since the will of man is inclined to will that which is contrary to the law; but through grace such dominion is taken away, so that, namely, man keeps the law not as one existing under the law, but as one who is free. Galatians 4:31: "we are not the children of the bondwoman, but of the free: with which liberty Christ has made us free." But the sacraments of the law did not confer this grace which makes men freely fulfill the law; rather, the sacraments of Christ confer it. And therefore those who subjected themselves to the ceremonies of the law, as far as pertains to the power of those legal sacraments themselves, were not under grace, but under the law, unless perhaps they attained grace through faith in Christ. But those who subject themselves to the sacraments of Christ obtain grace from their power, so that they are not under the law, but under grace, unless perhaps through their own fault they subject themselves to the servitude of sin. Then, when he says, "what then," etc., he raises a question against what has been said. And concerning this he does three things: first he sets forth the question; second he resolves it by leading to an absurdity, at the place, "God forbid. Know you not," etc.; third he shows that what he had led to is indeed absurd, at the place, "I thank God," etc. Concerning the first it must be considered that the aforesaid statement could be wrongly understood by some, namely that the faithful of Christ are not under the law as regards the obligation of observing the moral precepts, from which it would follow that it would be lawful for the faithful of Christ to sin, that is, by acting against the moral precepts. And therefore in this sense he raises the question, saying: what then shall we say, shall we sin, namely by acting against the moral precepts of the law, since it has been said that we are not under the law, but under grace? And the Apostle disproves this sense in Galatians 5:13, saying: "you have been called unto liberty, my brothers; only make not liberty an occasion to the flesh." And therefore here too, in answering, he adds, "God forbid," namely that we should sin because we have been freed from the law; for if we were to sin, this absurdity would follow, that we would again be reduced to the servitude of sin. And this is what he means when he says, "know you not, that to him to whom you present yourselves as servants, by your own will, to obey spontaneously, you are servants — to him whom you have obeyed." For to obey is a debt which servants owe to their masters. Ephesians 6:5: "servants, obey your masters according to the flesh." Hence when someone obeys another, by obeying he professes himself to be his servant. Yet different masters are obeyed for a different wage. For he who obeys sin is led, through the servitude of sin, unto death. And this is what he means when he says, "whether of sin," namely you are servants of it by obeying it. And this is "unto death," that is, unto being hurled headlong into eternal damnation, of which it is said in Revelation 2:11: "in these the second death has no place." But he who obeys God becomes the servant of this obedience; because through the habit of obeying, his mind is inclined more and more to obey, and from this he perfects justice. And this is what he means when he says, "or of obedience," namely of the divine precepts, you are servants unto the fulfilling of justice, according to that which was said above, 2:13: "the doers of the law shall be justified." And fittingly enough he opposes obedience to sin, because, as Ambrose says, sin is the transgression of the divine law and disobedience of the heavenly commandments. Then, when he says, "but thanks be to God," he shows this to be absurd, namely that by obeying sin, we should again be brought back into the servitude of sin. First indeed by a reason taken from the benefit which we have obtained. For if someone is freed from servitude through another's favor, it is absurd that he should of his own accord subject himself again to servitude; hence, since we have been freed from sin through the grace of God, it is absurd that we should again of our own accord thrust ourselves back into the servitude of sin. Second, from the condition into which we have been led after liberty from sin, namely that we should be servants of justice. But it is not lawful for someone's servant to subject himself to the servitude of a contrary master; hence it is not lawful for us, since we have been made servants of justice, to return again to the servitude of sin. The Apostle touches on both reasons at once, saying, "I give thanks to God" — thus you too ought to give thanks — that, whereas you were the servants of sin (because "he who commits sin is the servant of sin," John 8:34), you have obeyed, namely by believing, above 1:5: "unto obedience of the faith in all nations"; and this not under compulsion, but from the heart, below 10:10: "with the heart we believe unto justice"; unto that form of doctrine, that is, the doctrine of the Catholic faith, 2 Timothy 1:13: "holding the form of sound words which you have heard from me"; into which you have been delivered, 2 Corinthians 8:5: "they gave their own selves, first to God, then to us by the will of God." And through this you have been freed from sin, and so it is not fitting that you should abandon justice. 1 Corinthians 7:23: "you are bought with a price, and you are not your own."”

“Let not sin therefore reign in your mortal body,.... Since grace reigns in you, sin should not: seeing ye are dead to sin, are baptized into the death of Christ, and are dead with him, and alive through him, sin therefore should not reign in you, and over you. This exhortation does not suppose a freewill power in man naturally, for this is spoken to persons, who had the Spirit and grace of Christ, and in whom God had wrought both to will and to do of his good pleasure; nor is this exhortation unnecessary to believers, though they are dead to sin, and though God has promised it shall not have the dominion over them, and though reigning sin, as divines say, cannot be in regenerate persons; for though they are entirely dead to sin as justified persons, yet not perfectly so as sanctified: they are indeed dead to sin, but sin is not dead in them; it struggles, it makes war, leads captive, and threatens absolute and universal dominion, wherefore such an exhortation is necessary; besides, though God has promised that sin shall not have the dominion, yet making use of means, such as prayer to God that it may not, striving against it, opposing it, in order to hinder its dominion, are no ways inconsistent with the promise of God, whose promises often have their accomplishment in the use of means: moreover, whereas some divines say, that reigning sin may be and others that it cannot be in regenerate persons, it should be observed, that if by reigning sin is meant, sinning against God out of malice and contempt, with the whole heart, without any struggle against it, or repentance for it, or so as to lose the grace of God, and never rise more, then it must be said that it cannot be in a regenerate man; but if by it is meant, falling into sin against their consciences, knowingly and willingly, so as to distress their minds, lose their peace, and grieve the Spirit of God, so as to be held under it, and be led captive by it, such power sin may have in them, and over them; and therefore the exhortation is not needless; and when the apostle says, let it not reign "in your mortal body", by it is either meant the whole man, or rather the body only, which is the instrument of sinning, and is become mortal through sin; and being so, is a reason why it should not reign in it, since it has done so much mischief to it already: and this also denotes the time of sin's being in us, and of the danger of its reigning in us; it is only whilst we are in this mortal body; and the consideration of our mortality should quicken us to war against sin, and be careful not to obey it in the lusts thereof; the lusts of the body, or flesh, which are therefore sometimes called fleshly lusts, are many, and have great power and influence; and may be said to be obeyed, when provision is made to fulfil them, when these are the business of a man's life, and the whole of his conversation is taken up in them, without struggle against them, or opposition to them; and heroin lies the reign of sin.”

“Let not sin therefore reign - This is a prosopopoeia, or personification. Sin is represented as a king, ruler, or tyrant, who has the desires of the mind and the members of the body under his control so that by influencing the passions he governs the body. Do not let sin reign, do not let him work; that is, let him have no place, no being in your souls; because, wherever he is he governs, less or more: and indeed sin is not sin without this. How is sin known? By evil influences in the mind, and evil acts in the life. But do not these influences and these acts prove his dominion? Certainly, the very existence of an evil thought to which passion or appetite attaches itself, is a proof that there sin has dominion; for without dominion such passions could not be excited. Wherever sin is felt, there sin has dominion; for sin is sin only as it works in action or passion against God. Sin cannot be a quiescent thing: if it do not work it does not exist. That ye should obey it in the lusts thereof - Αυτῃ εν ταις επιθυμιαις αυτου. This clause is wanting in the most ancient and reputable MSS. and in the principal versions. Griesbach has left it out of his text; and Professor White says, Certissime delenda: "These words should certainly he expunged" they are not necessary to the apostle's argument; it was enough to say, Let not sin reign in your mortal bodies, that ye should obey it. If it be there it will reign there; and its reign supposes, necessarily, the subjection of that in which it reigns. A king reigns when his laws are enforced, and the people obey them. When there is no executive government there is no reign. There may be a royal shadow there, but there is no king.”

“Let not sin, therefore, reign, &c. He compares sin and justice to two kings, or generals, under one of which every man fights in this world. Sin is the tyrant, under which fight the wicked, and make their minds and their members the instruments, or arms of iniquity to sin, when they follow and yield to their disorderly lusts. But he exhorts them to live so as to make the powers of their souls, and their members, instruments or arms of justice to God, to fight under God, their lawful king, and under the banner of his justice. (Witham)”

“G. P. " Obey it in the lusts thereof." The Vulgate reading is conformable to the Alexandrian, Vatican, and Ephrem manuscripts, and to the ancient versions. St. Chrysostom read it as in the common test. He remarks: "It is no honour to gratify in all things the body in its caprice ; on the contrary, it is the lowest bondage, and the greatest ignominy : for when it does what it will, then is tlie individual stripped of all liberty, but when it is restrained, he preserves his own dignity." St. Chrysostom.”

“WHAT PRACTICAL USE BELIEVERS SHOULD MAKE OF THEIR DEATH TO SIN AND LIFE TO GOD THROUGH UNION TO THE CRUCIFIED SAVIOUR. (Rom 6:12-23) Let not sin therefore--as a Master reign--(The reader will observe that wherever in this section the words "Sin," "Obedience," "Righteousness," "Uncleanness," "Iniquity," are figuratively used, to represent a Master, they are here printed in capitals, to make this manifest to the eye, and so save explanation). in your mortal body, that ye should obey it--sin. in the lusts thereof--"the lusts of the body," as the Greek makes evident. (The other reading, perhaps the true one, "that ye should obey the lusts thereof," comes to the same thing). The "body" is here viewed as the instrument by which all the sins of the heart become facts of the outward life, and as itself the seat of the lower appetites; and it is called "our mortal body," probably to remind us how unsuitable is this reign of sin in those who are "alive from the dead." But the reign here meant is the unchecked dominion of sin within us. Its outward acts are next referred to.”