18 For I know that nothing good dwells ^ain me, that is, in my flesh. For I have the desire to do what is right, but not the ability to carry it out. 19 ^bFor I do not do the good I want, but the evil I do not want is what I keep on doing. 20 Now if I do what I do not want, ^cit is no longer I who do it, but sin that dwells within me.