Romans 7:18,19,15

"For I know that in me (that is, in my flesh) nothing good dwells; for to will is present with me, but how to perform what is good I do not find.  For the good that I will to do, I do not do; but the evil I will not to do, that I practice.... For what I am doing, I do not understand.  For what I will to do, that I do not practice, but what I hate, that I do."