He may have never been a believer. The intent may have been to deceive from the beginning. I really do not know. The devil knows he can't deceive by flashing poison in front of people so he first comes and gains trust and love through someone. There are people, I believe, so dedicated to Billy Graham they would follow him anywhere. That includes following him to hell. Billy would have never gotten this kind of loyalty if he would have started out with these deceiving beliefs. We all know the story about how to cook a frog.