Ephesians 6:12

(13) For we wrestle not against flesh and (g) blood, but against (h) principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high [places].

(13) Secondly, he declares that our chiefest and mightiest enemies are invisible, so that we may not think that our chiefest conflict is with men.

(g) Against men, who are of a frail and brittle nature, against whom are set spiritual wiles, a thousand times more mighty than the flesh.

(h) He gives these names to the evil angels, by reason of the effects which they work: not that they are able to do the same in and of themselves, but because God gives them permission.