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.

The Bible (The New Testament) (AD 1st - 2nd C) Christian sacred scripture

Ephesians 6:12 [KJV (1611)]
    (Source)

Alternate translations:

For it is not against human enemies that we have to struggle, but against the Sovereignties and the Powers who originate the darkness in this world, the spiritual army of evil in the heavens.
[JB (1966)]

For we are not fighting against human beings but against the wicked spiritual forces in the heavenly world, the rulers, authorities, and cosmic powers of this dark age.
[GNT (1976)]

For our struggle is not against blood and flesh but against the rulers, against the authorities, against the cosmic powers of this present darkness, against the spiritual forces of evil in the heavenly places.
[NRSV (1989 ed.)]

For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.
[NIV (2011 ed.)]