Romans 7:18

For I don’t understand what I am doing. For I don’t practice what I desire to do; but what I hate, that I do.

But if what I don’t desire, that I do, I consent to the law that it is good.

So now it is no more I that do it, but sin which dwells in me.

For the good which I desire, I don’t do; but the evil which I don’t desire, that I practice.

But if what I don’t desire, that I do, it is no more I that do it, but sin which dwells in me.

I find then the law that, while I desire to do good, evil is present.