Ephesians 3:8-13

v8-9: "There is a vast treasure of mercy, grace, and love stored in Christ Jesus for both Jews and Gentiles."  This treasure is to be made known and offered to the whole world, and those who "are not made rich with these riches" only have themselves to blame for remaining poor by not responding with faith to the preaching of the gospel.

v10-13: The wisdom of God is "revealed in the many different ways and methods he uses in organising his church in its various ages" and especially in the way the Gentiles have been gathered into it.  All that has been accomplished in and through Jesus Christ "in the great matter of human redemption was according to the Father's eternal decree about that matter."