[T]hat the Gentiles should be fellow heirs, of the same body, and partakers of His promise in Christ through the gospel, of which I became a minister according to the gift of the grace of God given to me by the effective working of His power. To me, who am less than the least of all the saints, this grace was given, that I should preach among the Gentiles the unsearchable riches of Christ, and to make all see what is the fellowship of the mystery, which from the beginning of the ages has been hidden in God who created all thingsthrough Jesus Christ; to the intent that now the manifold wisdom of God might be made known by the church to the principalities and powers in the heavenly places,
This is another "wrap your arms around yourself and give yourself a hug" passages. Paul uses some very emphatic language to make sure we understand that we, the Gentiles, are included in the family of the the LORD, God, the Almighty. Not just tag along adoptees, but fully entitled members of the fellowship; a fellowship planned through the ages as a fully functional inclusion in the Trintiarian Family.
Readings:
Morning Psalm 16, Noon Psalm 119:169-176, Evening Psalm 107