Anybody who is a believer in the Lord Jesus Christ has the authority necessary to drive out demons spirits. This book we look at the bible way of doing so and much more. Mark 16: 15And he said unto them, Go ye into all the world, and preach the gospel to every creature. 16 He that believeth and is baptized shall be saved; but he that believeth not shall be damned. 17 And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues;