Sin, Repentance, and the Devil

I stumble again. I’m alone, with my fleshing battling against me and I stumble. I turn towards vice and all worldliness, ignoring the clear command of God. Knowing better, I still have a moment of weakness and give in to myself, to the temptation. For I do not do the good I want, but the evil I do not want is what I keep on doing. Romans 7:19