The document discusses the themes of unity and oneness in Christ from Ephesians chapters 2 and 4. It emphasizes that through Christ, believers have been made one body with one Spirit, one Lord, one faith, one baptism and one God. Christ broke down divisions between people and created one new humanity. Both Jews and Gentiles now have access to God through the one Spirit. Believers are fellow citizens in God's household and are being built together into a dwelling for God.