Romans 7:7
What follows, then? That 'the Law is equivalent to sin'? Never! Why, had it not been for the Law, I would never have known what sin meant! Thus I would never have known what it is to covet, unless the Law had said, You must not covet.
Romans 7:13
Then did what was meant for my good prove fatal to me? Never! It was sin; sin resulted in death for me by making use of this good thing. This was how sin was to be revealed in its true nature; it was to use the command to become sinful in the extreme.
Romans 8:7
For the interests of the flesh are hostile to God; they do not yield to the law of God (indeed they cannot).