And outside the walls of the prison, closer to your life, you could probably draw a pretty long list of Christians you know who have done wrong. Christians are often not respectful when they should be. Christians cheat on their spouses and have impure thoughts. Christians cheat others. Christians run others down.
Christians abort babies.
Christians do all sorts of things that make the devil smile and make God sad. No, not at all. It does, however, show that we Christians easily do the wrong thing. We often give in to evil. We often overestimate ourselves.