How do you banish a lingering spirit?

Austin, there is no such thing as "holy magic." There is however the power of God. I know when I gave my heart to Jesus and accepted Him as my God and Lord the result was safety. No evil power can harm me. No power can come against the name of Jesus when spoken by someone who is His. You can only know the one God through Jesus. Trying to worship God through other religions or combinations just tells evil spirits that you do not know God.