Romans 7:14-18

14We know that the law is spiritual; but I am unspiritual, sold as a slave to sin. 15I do not understand what I do. For what I want to do, I do not do. But what I hate, I do. 16And if I do what I do not want to do, I admit that the law is good. 17In that case, it is no longer I who do it, but it is sin living in me that does it.

18I know that nothing good lives in me, that is, in my flesh; for I have the desire to do what is good, but I cannot carry it out.