Romans 7:21 in the World English Bible
I find then the law that, while I desire to do good, evil is present.
Context
20 Now if I do that I would not, it is no more I that do it, but sin that dwelleth in me.
21 I find then a law, that, when I would do good, evil is present with me.
22 For I delight in the law of God after the inward man: