There are evil forces in the spirit realm who are constantly waging war against us. Ephesians 6:12 NKJV gives us a summary of these evil forces in the spirit realm. It says: “For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age, against spiritual hosts of wickedness in the heavenly places.” However as believers, we have no reason to be afraid of them.
