Bible Verses About War: The contest of saints with the enemies of their salvation

but I see a different law in my members, warring against the law of my mind, and bringing me into captivity under the law of sin which is in my members.

For though we walk in the flesh, we do not war according to the flesh

For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world-rulers of this darkness, against the spiritual hosts of wickedness in the heavenly places.

This charge I commit unto thee, my child Timothy, according to the prophecies which led the way to thee, that by them thou mayest war the good warfare;