"To me, the very least of all saints, this grace was given, to preach to the Gentiles the unfathomable riches of Christ, and to bring to light what is the administration of the mystery which for ages has been hidden in God, who created all things; in order that the manifold wisdom of God might now be made known through the church to the rulers and the authorities in the heavenly places," (Ephesians 3:8-- 10).
* In these verses, Paul explains why grace was given him to preach to not only the Jews, but also to the Gentiles. By bringing together into one body, the church, (both Jews and Gentiles), God's wisdom would be made manifest. Angelic beings in the heavenly realms would praise the wonderful wisdom of God in revealing this mystery.
* The church, Paul teaches, is a mystery-- something hidden in God for ages, now revealed by divine decree. The inclusion of both believing Jews & Gentiles into one body known as the church, was unknown in the Old Testament. And it was given to Paul to reveal the eternal purpose of God for the mystery we know as the church.