2 Corinthians 10:3–5

For though we live in the world, we do not wage war as the world does. The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds. We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ.

Ephesians 6:12

For we are not fighting against flesh-and-blood enemies, but against evil authorities of the unseen world, against mighty powers in this dark world, and against evil spirits in the heavenly places.