14 So the trouble is not with the law, for it is spiritual and good. The trouble is with me, for I am all too human, a slave to sin. 15 I don’t really understand myself, for I want to do what is right, but I don’t do it. Instead, I do what I hate. 16 But if I know that what I am doing is wrong, this shows that I agree that the law is good. 17 So I am not the one doing wrong; it is sin living in me that does it.18 And I know that nothing good lives in me, that is, in my sinful nature. I want to do what is right, but I can’t. 19 I want to do what is good, but I don’t. I don’t want to do what is wrong, but I do it anyway. 20 But if I do what I don’t want to do, I am not really the one doing wrong; it is sin living in me that does it.
21 I have discovered this principle of life—that when I want to do what is right, I inevitably do what is wrong. 22 I love God’s law with all my heart. 23 But there is another power within me that is at war with my mind. This power makes me a slave to the sin that is still within me. 24 Oh, what a miserable person I am! Who will free me from this life that is dominated by sin and death? 25Thank God! The answer is in Jesus Christ our Lord. So you see how it is: In my mind I really want to obey God’s law, but because of my sinful nature I am a slave to sin.
From Romans 7 (NLT)