I agree on the subject of abortion, and I think capital punishment is right either. Yes, maybe the person deserves it, but is that really up to us? God is going to take care of it in the end, and we should be more concerned about witnessing to the person that killing them. I would much rather someone be sentenced to a lifetime in jail than sentenced to death, because in the case of the former, they still have a chance to hear about Jesus. Being able to hear about Jesus and even accept him is far more important than what could be defined as revenge.
