Romans 7:13-15

Amplified Bible

¹³ Did that which is good [the Law], then become death to me? Certainly not! But sin, in order that it might be revealed as sin, was producing death in me by [using] this good thing [as a weapon], so that through the commandment sin would become exceedingly sinful.

The Conflict of Two Natures

¹⁴ We know that the Law is spiritual, but I am a creature of the flesh [worldly, self-reliant—carnal and unspiritual], sold into slavery to sin [and serving under its control]. ¹⁵ For I do not understand my own actions [I am baffled and bewildered by them]. I do not practice what I want to do, but I am doing the very thing I hate [and yielding to my human nature, my worldliness—my sinful capacity].