Ephesians 3:8, 10, 16

Unto me, who am less than the least of all saints, was this grace given, to preach unto the Gentiles the unsearchable riches of Christ

to the intent that now unto the principalities and the powers in the heavenly places might be made known through the church the manifold wisdom of God

that he would grant you, according to the riches of his glory, that ye may be strengthened with power through his Spirit in the inward man