The interpretation timeline
Romans 7:18 Douay-Rheims

For I know that there dwelleth not in me, that is to say, in my flesh, that which is good. For to will, is present with me; but to accomplish that which is good, I find not.

A.D. 202 – 1871 8 witnesses 11 excerpts

Patristic

before A.D. 750
202
A.D.
Irenaeus Patristic
c. A.D. 130–202
“On this account, therefore, the Lord Himself, who is Emmanuel from the Virgin, is the sign of our salvation, since it was the Lord Himself who saved them, because they could not be saved by their own instrumentality; and, therefore, when Paul sets forth human infirmity, he says: "For I know that there dwelleth in my flesh no good thing," showing that the "good thing" of our salvation is not from us, but from God. And again: "Wretched man that I am, who shall deliver me from the body of this death?" Then he introduces the Deliverer, [saying, ] "The grace of Jesus Christ our Lord." And Isaiah declares this also, [when he says: ] "Be ye strengthened, ye hands that hang down, and ye feeble knees; be ye encouraged, ye feeble-minded; be comforted, fear not: behold, our God has given judgment with retribution, and shall recompense: He will come Himself, and will save us." Here we see, that not by ourselves, but by the help of God, we must be saved.”
Source
“The parable of the two sons also: those who are sent into the vineyard, of whom one indeed opposed his father, but afterwards repented, when repentance profited him nothing; the other, however, promised to go, at once assuring his father, but he did not go (for "every man is a liar;" "to will is present with him, but he finds not means to perform"),-[this parable, I say], points out one and the same Father.”
Source
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“I Fully confess unto the Lord God that it has been rash enough, if not even impudent, in me to have dared compose a treatise on Patience, for practising which I am all unfit, being a man of no goodness; whereas it were becoming that such as have addressed themselves to the demonstration and commendation of some particular thing, should themselves first be conspicuous in the practice of that thing, and should regulate the constancy of their commonishing by the authority of their personal conduct, for fear their words blush at the deficiency of their deeds.”
Source
“"For as ye have tendered your members to servile impurity and iniquity, so too now tender them servants to righteousness unto holiness." For even if he has affirmed that "good dwelleth not in his flesh," yet (he means) according to "the law of the letter," in which he "was: "but according to "the law of the Spirit," to which he annexes us, he frees us from the "infirmity of the flesh.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“On this text, those who find fault with the flesh, and contend it was no part of God's creation, attack us. What are we to say then? Just what we did before, when discussing the Law: that as there he makes sin answerable for everything so here also. For he does not say, that the flesh worketh it, but just the contrary, "it is not I that do it, but sin that dwelleth in me." But if he does say that "there dwelleth no good thing in it," still this is no charge against the flesh. For the fact that "no good thing dwelleth in it," does not show that it is evil itself. Now we admit, that the flesh is not so great as the soul, and is inferior to it, yet not contrary, or opposed to it, or evil; but that it is beneath the soul, as a harp beneath a harper, and as a ship under the pilot. And these are not contrary to those who guide and use them, but go with them entirely, yet are not of the same honor with the artist. As then a person who says, that the art resides not in the harp or the ship, but in the pilot or harper, is not finding fault with the instruments, but pointing out the great difference between them and the artist; so Paul in saying, that "in my flesh dwelleth no good thing," is not finding fault with the body, but pointing out the soul's superiority. For this it is that has the whole duty of pilotage put into its hands, and that of playing. And this Paul here points out, giving the governing power to the soul, and after dividing man into these two things, the soul and the body, he says, that the flesh has less of reason, and is destitute of discretion, and ranks among things to be led, not among things that lead. But the soul has more wisdom, and can see what is to be done and what not, yet is not equal to pulling in the horse as it wishes. And this would be a charge not against the flesh only, but against the soul also, which knows indeed what it ought to do, but still does not carry out in practice what seems best to it. "For to will," he says, "is present with me; but how to perform that which is good, I find not." Here again in the words, "I find not," he does not speak of any ignorance or perplexity, but a kind of thwarting and crafty assault made by sin, which he therefore points more clearly out in the next words.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“It is possible for a good to be performed when there is no yielding to evil lust, but the good is completed or perfected only when evil lust itself no longer exists.”
“Paul says that the evil of the flesh is not good but that when this evil has ceased to exist the flesh will still be there, but … then it will not be defective or corrupt.”

Scholastic

c. 1100 – 1500
1273
A.D.
Thomas Aquinas Catholic
1225–1274
“After the Apostle has shown that the law is good from the fact that it agrees with reason, here he draws two conclusions according to the two things he had set down; the second is set down where he says, "But I see another law," etc. Concerning the first he does two things. First he draws the conclusion from what has been said; second he sets down a sign for the greater manifestation of it, where he says, "I am delighted," etc. Now he had set down two things above. The first indeed, that the law is spiritual; this having now been proved, he concludes thus: "I find then" — that is, by experience — that the law of Moses is in accord with me willing to do good, that is, with my reason, by which I approve the good and detest the evil, since that law itself also commands the good and forbids the evil. Deuteronomy 30:14: "The word is very near to you, in your mouth and in your heart, that you may do it." And in this way it was necessary that — that is, because evil, that is, sin or the tinder of sin, is present to me — that is, lies alongside my reason, as it were inhabiting my flesh. Micah 8:5: "From her that sleeps in your bosom, guard the closures of your mouth," that is, from the flesh. Then when he says, "For I am delighted," etc., he sets down a sign by which it is shown that the law agrees with reason. For no one is delighted except in that which is fitting to him. But man according to reason is delighted in the law of God; therefore the law of God is fitting to reason. And this is what he says: "I am delighted with the law of God according to the interior man," that is, according to reason and mind, which is called the interior man — not because the soul is figured according to the form of a man, as Tertullian held, or because it alone is the man, as Plato held, that man is a soul using a body; but because that which is more principal in man is called man, as was said above. Now in man that which is more principal according to appearance indeed is that which is exterior, namely the body so figured, which is called the exterior man; but according to truth, that which is intrinsic, namely the mind or reason, is what is here called the interior man. Psalm 118:103: "How sweet are your words to my throat." 1 Maccabees 12:9: "Having for our solace the holy books that are in our hands." Then when he says, "But I see," etc., he sets down another conclusion which corresponds to what he had said above, saying, "But I am carnal," etc. Saying, "I see another law in my members," which is the tinder of sin, which indeed can be called law for a twofold reason. In one way on account of similar effects, because just as the law induces to doing good, so the tinder induces to sinning. In another way by comparison to its cause. Now since the tinder is a certain punishment of sin, it has a twofold cause: one indeed sin itself, which took dominion in the sinner and imposed on him a law, which is the tinder, just as a lord imposes a law on a conquered servant. The other cause of the tinder is God, who placed this punishment on man when he sinned, so that the lower powers should not obey his reason. And according to this, the very disobedience of the lower powers, which is called the tinder, is called law insofar as it is introduced through the law of divine justice, like the sentence of a just judge, which has the force of law, according to that saying, 1 Kings 30:25: "And this was done from that day forward, and it was appointed and determined, and became as it were a law in Israel unto this day." But this law consists originally indeed in the sensitive appetite, but is found diffusively in all the members, which serve concupiscence unto sinning. Above, Romans 6:19: "Just as you presented your members to serve uncleanness," etc. And therefore he says, "in my members." Now this law has two effects in man. For first it resists reason, and as to this he says, "fighting against the law of my mind," that is, against the law of Moses, which is called the law of the mind insofar as it accords with the mind, or against the natural law, which is called the law of the mind because it is naturally implanted in the mind. Above, Romans 2:15: "Who show the work of the law written in their hearts." And concerning this fighting it is said, Galatians 5:17: "The flesh lusts against the spirit." The second effect is that it reduces man into servitude. And as to this he adds, "and captivating me," or according to another reading, "leading me captive," "in the law of sin, which is in my members," that is, in myself, after the manner of Hebrew speech, according to which nouns are put in place of pronouns. But the law of sin takes man captive in two ways: in one way, the sinning man, through consent and operation; in another way, the man established under grace, as to the movement of concupiscence. Concerning this captivity it is said in Psalm 125:1: "When the Lord turned the captivity of Sion." Then when he says, "Unhappy man that I am," etc., he deals with liberation from the law of sin, and does three things concerning this. First indeed he poses the question; second he gives the answer, where he says, "the grace of God," etc.; third he draws the conclusion, where he says, "therefore I myself," etc. Concerning the first he does two things. One thing indeed he confesses, namely his own misery, when he says, "Unhappy man that I am" — which indeed is on account of the sin which dwells in man, whether only as to the flesh, as in the just man, or also as to the mind, as in the sinner. Proverbs 14:34: "Sin makes peoples miserable." Psalm 37:7: "I have been made miserable and bowed down even to the end." The other thing he asks, saying, "Who will deliver me from the body of this death?" This indeed seems to be the question of one desiring, according to that saying, Psalm 141:10: "Bring my soul out of prison." It must be known, however, that in the body of man one can consider both the very nature of the body, which is fitting to the soul, whence the soul does not wish to be separated from it — 2 Corinthians 5:4: "We do not wish to be stripped, but to be clothed over" — and again the corruption of the body, which weighs down the soul, according to that saying, Wisdom 9:15: "The body which is corrupted weighs down the soul," etc. And therefore he says pointedly, "from the body of this death." Then when he says, "The grace of God," etc., he answers the question. For man cannot by his own powers be freed from the corruption of the body, nor even of the soul, although he consents with reason against sin, but only through the grace of Christ, according to that saying, John 8:36: "If the Son shall have made you free, you shall be free indeed." And therefore there follows, "the grace of God" — namely, will free me — "which is given through Jesus Christ." John 1:17: "Grace and truth came through Jesus Christ." Now this frees from the body of this death in two ways: in one way, so that the corruption of the body does not dominate the mind, dragging it to sin; in another way, so that the corruption of the body is totally removed. As to the first, therefore, it is fitting for the sinner to say: "grace has freed me from the body of this death," that is, it has freed me from the sin into which the soul is led by the corruption of the body. But from this the just man is already freed, whence it belongs to him to say, as to the second: "the grace of God has freed me from the body of this death," namely, that in my body there be no corruption of sin or of death — which will be in the resurrection. Then when he says, "Therefore I myself," etc., he draws a conclusion which, according to the two aforesaid expositions, is inferred differently from what precedes. For according as the aforesaid words are expounded in the person of the sinner, the conclusion is to be inferred thus: it was said that the grace of God freed me from the body of this death, namely so that I might not be led by it into sin; therefore, when I shall already be freed, with the mind I serve the law of God, but according to the flesh the law of sin, which indeed remains in the flesh as to the tinder, through which the flesh lusts against the spirit. But if the aforesaid words are understood from the person of the just man, it is to be inferred thus: the grace of God through Jesus Christ freed me from the body of this death, namely so that in me there be no corruption of sin and of death. Therefore, I myself, one and the same, before I am freed, with the mind serve the law of God, consenting to it, but with the flesh I serve the law of sin, insofar as my flesh, according to the law of the flesh, is moved to concupiscence.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“For I know that in me, that is, in my flesh,.... The apostle goes on to give some further account of himself, what he knew, and was fully assured of by long experience; as that dwelleth no good thing in him, that is, in his flesh, or carnal self; for otherwise there were many good things dwelt in him; there was the good work of grace, and the good word of God in him, and even Father, Son, and Spirit, dwelt in him; but his meaning is, that there was no good thing naturally in him; no good thing of his own putting there; nothing but what God had put there; no good thing, but what was owing to Christ, to the grace of God, and influence of the Spirit; or as he himself explains it, there was no good thing in his "flesh"; in the old man that was in him, which has nothing in his nature good; no good thing comes out of him, nor is any good thing done by him: and this explanative and limiting clause, "that is, in my flesh", clearly proves, that the apostle speaks of himself, and as regenerate; for had he spoke in the person of an unregenerate man, there would have been no room nor reason for such a restriction, seeing an unregenerate man is nothing else but flesh, and has nothing but flesh, or corrupt nature in him; and who does not know, that no good thing dwells in such persons? whereas the apostle intimates by this explication, that he had something else in him beside flesh, and which is opposed to it; and that is spirit, or the new man, which is of a spiritual nature, and is seated in the spirit, or soul, and comes from the Spirit of God; and in this spiritual man dwell good things, for "the fruit of the Spirit is in all goodness, righteousness, and truth"; so that though there was no good thing dwelling in his flesh, in the old than, yet there were good things dwelling in his spirit, in the new and spiritual man, the hidden man of the heart: and he adds, to will is present with me; which must be understood, not of the power and faculty of the will, with respect to things natural and civil, which is common to all men; nor of a will to that which is evil, which is in wicked men; but of a will to that which was good, which he had not of himself, but from God, and is only to be found in regenerate persons; and denotes the readiness of his mind and will to that which is spiritually good, like that which Christ observes of his disciples, when he says, "the spirit is willing, but the flesh is weak", Mat 26:41, which may serve much to illustrate the passage before us: since it follows, but how to perform that which is good, I find not; he found he had no strength of himself to do what he willed; and that he could do nothing without Christ; and that what he did by the strength and grace of Christ, he did not do perfectly. To will to live without sin, not to have a lustful or a revengeful thought in his breast, was present with him, but how to perform, how to live in this manner, which was so desirable to him, being born again, he found not. It may be asked, how does this agree with what the apostle says, "it is God which worketh in you both to will and to do of his good pleasure?" Phi 2:13. To this it may be replied, that when God does work in his people both to will and to do, he does not work both equally alike, or to the same degree, so that the work answers to the will; God never works in them so to do, as to will, for when they are wrought in, acted upon, and influenced to do the most, and that in the best manner, they never do all that they would; and sometimes God works in them to will, when he does not work in them to do; as in the case of the disciples of Christ, in whom he worked to will to watch with Christ an hour, but did not work in them to do, Mat 26:40; and whenever he works in the saints, whether to will or to do, or both, it is always of his own good pleasure.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“For I know that in me, etc. - I have learned by experience that in an unregenerate man there is no good. There is no principle by which the soul can be brought into the light; no principle by which it can be restored to purity: fleshly appetites alone prevail; and the brute runs away with the man. For to will is present with me - Though the whole soul has suffered indescribably by the Fall, yet there are some faculties that appear to have suffered less than others; or rather have received larger measures of the supernatural light, because their concurrence with the Divine principle is so necessary to the salvation of the soul. Even the most unconcerned about spiritual things have understanding, judgment, reason, and will. And by means of these we have seen even scoffers at Divine revelation become very eminent in arts and sciences; some of our best metaphysicians, physicians, mathematicians, astronomers, chemists, etc., have been known - to their reproach be it spoken and published - to be without religion; nay, some of them have blasphemed it, by leaving God out of his own work, and ascribing to an idol of their own, whom they call nature, the operations of the wisdom, power, and goodness of the Most High. It is true that many of the most eminent in all the above branches of knowledge have been conscientious believers in Divine revelation; but the case of the others proves that, fallen as man is, he yet possesses extra-ordinary powers, which are capable of very high cultivation and improvement. In short, the soul seems capable of any thing but knowing, fearing, loving, and serving God. And it is not only incapable, of itself, for any truly religious acts; but what shows its fall in the most indisputable manner is its enmity to sacred things. Let an unregenerate man pretend what he pleases, his conscience knows that he hates religion; his soul revolts against it; his carnal mind is not subject to the law of God, neither indeed can it be. There is no reducing this fell principle to subjection; it is Sin, and sin is rebellion against God; therefore sin must be destroyed, not subjected; if subjected, it would cease to be sin, because sin is in opposition to God: hence the apostle says, most conclusively, it cannot be subjected, i.e. it must be destroyed, or it will destroy the soul for ever. When the apostle says, to will is present with me, he shows that the will is on the side of God and truth, so far that it consents to the propriety and necessity of obedience. There has been a strange clamor raised up against this faculty of the soul, as if the very essence of evil dwelt in it; whereas the apostle shows, throughout this chapter, that the will was regularly on God's side, while every other faculty appears to have been in hostility to him. The truth is, men have confounded the will with the passions, and laid to the charge of the former what properly belongs to the latter. The will is right, but the passions are wrong. It discerns and approves, but is without ability to perform: it has no power over sensual appetites; in these the principle of rebellion dwells: it nills evil, it wills good, but can only command through the power of Divine grace: but this the person in question, the unregenerate man, has not received.”
Source
1871
A.D.
1871
“For, &c.--better, "For I know that there dwelleth not in me, that is in my flesh, any good." for to will--"desire." is present with me; but how to perform that which is good--the supplement "how," in our version, weakens the statement. I find not--Here, again, we have the double self of the renewed man; "In me dwelleth no good; but this corrupt self is not my true self; it is but sin dwelling in my real self, as a renewed man."”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.