Romans 7:17

Now then it is no more I--my renewed self. that do it--"that work it." but sin which dwelleth in me--that principle of sin that still has its abode in me. To explain this and the following statements, as many do (even BENGEL and THOLUCK), of the sins of unrenewed men against their better convictions, is to do painful violence to the apostle's language, and to affirm of the unregenerate what is untrue. That coexistence and mutual hostility of "flesh" and "spirit" in the same renewed man, which is so clearly taught in Rom 8:4, &c., and in Gal 5:16, &c., is the true and only key to the language of this and the following verses. (It is hardly necessary to say that the apostle means not to disown the blame of yielding to his corruptions, by saying, "it is not he that does it, but sin that dwelleth in him." Early heretics thus abused his language; but the whole strain of the passage shows that his sole object in thus expressing himself was to bring more vividly before his readers the conflict of two opposite principles, and how entirely, as a new man--honoring from his inmost soul the law of God--he condemned and renounced his corrupt nature, with its affections and lusts, its stirrings and its outgoings, root and branch).

We may observe in this chapter, I. Our freedom from the law further urged as an argument to press upon us sanctification (Rom 7:1-6). II. The excellency and usefulness of the law asserted and proved from the apostle's own experience, notwithstanding (Rom 7:7-14). III. A description of the conflict between grace and corruption in the heart (Rom 7:14, Rom 7:15, to the end).

7:17 I am not the one doing wrong: Paul is not evading responsibility for his sin (see also 7:20). Rather, he is saying that because he genuinely wants to do what the law commands, some other factor must be causing him to do just the opposite. That factor is sin living in me. Paul experiences a divide between his will and his actions.