In Mark 9:25 Jesus said, "Thou dumb and deaf spirit, I charge thee, come out of him and enter no more into him (KJV). In Luke 4:31-37 Jesus cast out a demon in a man. Jesus said in verse thirty-five, " Hold thy peace and come out of him (KJV). Jesus cast out, not cast off demon from his people. He gave his disciples and us the same mandate, "And these signs shall follow them that believe; in my name shall they cast out devils; (Mark 16:17)."
We know through scripture verses that people can have a demon, but can a Christian have a demon?