Resist the devil, and he will flee—James 4:7
Resist the devil, and he will flee from you. This is God’s promise and He will keep it. if we resist the adversary, God will compel him to flee and will give us the victory. just as a citizen would claim the protection of his government against an outrage or injustice by violent men, so we can at all times fearlessly defy and resist Satan our enemy.
At the same time we are not to stand on the adversary’s ground by any attitude or disobedience. In so doing we give him a certain power over us which, while God will restrain in great mercy and kindness, He will not fully remove until we get fully on holy ground. We must therefore be armed with the breastplate of righteousness as well as the shield of faith, if we would successfully resist . . . principalities, . . . powers, . . . rulers of the darkness of this world, . . . [and] spiritual wickedness in high places (Ephesians 6:12).
by A.B. Simpson