“To the intent that now unto the principalities and powers in heavenly places might be known by the church the manifold wisdom of God,”
King James Version (KJV)
3:10 That the manifold wisdom of God might be made known by the church - By what is done in the church, which is the theatre of the divine wisdom.
Eph 3:10 To the intent. The mystery had been hidden during all the ages, but was now revealed in order that the manifold wisdom of God might be made known. It was made known, (1) To the Gentiles by preaching the gospel. (2) To Jews. This is implied in the "all" of Eph 3:9. (3) To principalities and powers in heavenly places; that is, to angelic beings. See 1Pe 1:12. By the church. As the fruit of God's wisdom revealed in the gospel, and especially by the union of Jews and Gentiles in one body.