Romans 7:19
For the good that I would I do not: but the evil which I would not, that I do.
Cross-references
Romans 7:15
Parallel
Romans 7:15 expresses the same frustration verbatim—doing what he hates instead of what he wants. Nearly identical.
Romans 7:18
Parallel
Romans 7:18 states the desire but lack of ability; verse 19 elaborates with specific failure to do good. Direct continuation.
Philippians 3:12
Parallel
Philippians 3:12 acknowledges not yet perfect, pressing on—a similar confession of incomplete righteousness, but with forward hope.