Christians Immunity Against Evil Spirits: In the story of "The Exorcism of Emily Rose", she was supposed to be a Christian, but was possessed-so if you are a Christian, can you be possessed by an evil spirit? [Galatians 5:17f, 2 Corinthians 2, 10:14, Ephesians 4, 6:12, I John 4:4, James 4:7].