Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour: Whom resist steadfast in the faith, knowing that the same afflictions are accomplished in your brethren that are in the world.
I Peter 5:8-9
Submit yourselves therefore to God. Resist the devil, and he will flee from you. Draw nigh to God, and he will draw night to you.