War between Good and Evil.
Time believers suit up in the Armor of God (Epesians 6(
Ephesians 6:12 King James Version
12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
https://www.biblegateway.com/passage/?search=Ephesians%206%3A12&version=KJV