This section concludes the letter by establishing faithfulness as the crowning glory in the believer's proper response to God's offer of salvation and the blessings that come with it.
This section of the epistle describes the proper response to God's offer of salvation and the blessings attached to it, the first of which is to maintain the unity of the Spirit.
Paul explains the universal nature of the church by outlining the way God has brought together the most disparate groups of that era - Jews and Gentiles.