The Bible says that demons are cast out by the Word of God and by the power of the Holy Spirit, and only born-again Christians have the Word of God and the Holy Spirit in them. Nonbelievers do not have the Word of God or the Holy Spirit in them, and they thus do not have the power or authority from God to be able to cast demons out of anyone.
Get your copy of this book to assist you in scripture references in recognizing some demons and the word to aid you in casting them out!
