Ephesians 5:8; Ephesians 5:11; Ephesians 6:12

8 For ye were sometimes darkness, but now are ye light in the Lord: walk as children of light:

11 And have no fellowship with the unfruitful works of darkness, but rather reprove them.

12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.