NET

12 For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world rulers of this darkness, against the spiritual forces of evil in the heavens.

Darby

12 because our struggle is not against blood and flesh, but against principalities, against authorities, against the universal lords of this darkness, against spiritual [power] of wickedness in the heavenlies.

KJV

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].