1 Peter 5:8
8 Discipline yourselves, keep alert.[a] Like a roaring lion your adversary the devil prowls around, looking for someone to devour.
I don’t know if you have ever read the Screwtape Letters by C.S. Lewis but everyone should. It is such a good portrayal of the devil. The devil is wily and tricky. He will trick us if he can by making something seem good when it isn’t. He doesn’t appear evil. This is deliberate. Watch out!