Ephesians 2:2; Ephesians 3:5; Ephesians 3:10; Ephesians 5:8

2 in which you formerly walked according to the course of this world, according to the prince of the power of the air, of the spirit that is now working in the sons of disobedience.
5 which in other generations was not made known to the sons of men, as it has now been revealed to His holy apostles and prophets in the Spirit;
10 so that the manifold wisdom of God might now be made known through the church to the rulers and the authorities in the heavenly places.
8 for you were formerly darkness, but now you are Light in the Lord ; walk as children of Light