Romans 7:15-20 NLT

15 I don't understand myself at all, for I really want to do what is right, but I don't do it. Instead, I do the very thing I hate.
16 I know perfectly well that what I am doing is wrong, and my bad conscience shows that I agree that the law is good.
17 But I can't help myself, because it is sin inside me that makes me do these evil things.
18 I know I am rotten through and through so far as my old sinful nature is concerned. No matter which way I turn, I can't make myself do right. I want to, but I can't.
19 When I want to do good, I don't. And when I try not to do wrong, I do it anyway.
20 But if I am doing what I don't want to do, I am not really the one doing it; the sin within me is doing it.