7:15 I do. Note the excessive use of the first person pronoun in this passage—no less than thirty-five times in Romans 7:15-24. The old nature, with which Paul was struggling, and with which every believer must struggle, is self-centered instead of Christ-centered. As long as the measure of things is “I-me-mine,” instead of the will of God, then Paul’s cry must soon be ours—“O wretched man that I am!” (Romans 7:24).

7:18 no good thing. Paul, before his conversion, could boast that he was, as “touching the righteousness which is in the law, blameless” (Philippians 3:6). But then he came to see that all his “righteousnesses [were] as filthy rags” (Isaiah 64:6), and accepted “eternal life through Jesus Christ” (Romans 6:23). If such a man as Paul would have to confess that in his flesh there was nothing good at all, then surely every Christian must say the same.