Christians must put a guard their minds. To walk on Satan’s territory is an invitation for the devil to come in. This is also true of doctrines of demons. If a Christian entertains false doctrines, they will be open for demonic attack. Put a guard on your mouth and on your mind!
And what is the exceeding greatness of his power to usward who believe, according to the working of his mighty power, which he wrought in Christ when he raised him from the dead and set him at His own right hand in the heavenly places,”(Ephesians 1:19.