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You used to live in sin, just like the rest of the world, obeying the devil--the commander of the powers in the unseen world. He is the spirit at work in the hearts of those who refuse to obey God.
2 Corinthians 4:4
The god of this age has blinded the minds of unbelievers, so that they cannot see the light of the gospel that displays the glory of Christ, who is the image of God.
For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this world's darkness, and against the spiritual forces of evil in the heavenly realms.