Ephesians
Epaphras, a leader in the Colossian church, visited Paul while a prisoner at Rome to seek his apostolic help in dealing with the Colossian heresy. In response, Paul wrote the Colossians in opposition to their doctrinal error. Part of the defence of his position pictured Christ as head of the universe and of the church. After completing Colossians, Paul, with this idea of Christ's headship still fresh in mind, wrote Ephesians to spell out the logical outcome of this doctrine: if Christ is the church's Head, then Christians are members of His body; that is, believers enjoy an intimate relationship with Him, and thus have a unique relation with one another. Paul seeks to present the church as members of Jesus' body, possessing the closest possible relationship with Him and each other. Paul also stresses that both the Jewish and Gentile Christians share the same intimacy in God's family, and stand before Him on the same common ground of grace. These two doctrines join to make the theme of Ephesians that Jewish and Gentile believers are "one new man".