Paul's anticipation of his defense before Nero brought him back to the present in his thinking. His exposition of the mystery of the church to his readers had ended. He had also explained their proper conduct in view of their calling. All that remained was to share with them some personal information and to pray God's blessing on them.
6:21-22 Tychicus (lit. Chance) accompanied this letter to Ephesus and may have carried it. What Paul wrote about Tychicus and his purpose in sending Tychicus to Ephesus was almost identical with what he wrote in Colossians 4:7-8. Tychicus' mission was to give the Ephesian Christians further information about Paul and to comfort and encourage them (cf. Acts 20:4; Col. 4:7; Titus 3:12; 2 Tim. 4:12).
6:23 Peace, love, and faith are all important communal virtues in the Christian life. Peace was necessary because of the Jewish Gentile problems Paul wrote Ephesians to ameliorate (2:14-16; 3:15, 19; 4:3). Mutual love is the key to peace (1:15; 3:17-18; 4:2, 16). Mutual love rests on a common faith (1:15; 3:17; cf. Gal. 5:6). The ultimate source of all three of these essential qualities is God and Jesus Christ, united here in perfect equality.
6:24 As the apostle opened his epistle by referring to God's grace, so he ended it (1:2). God's grace was the key to the creation of the church and the calling of the Christian. It is also essential to the conduct of the Christian (cf. 1:7; 2:5, 7-8; 3:2, 8; 4:7). Paul wished God's unmerited favor and divine enablement on all who love Jesus Christ purely, without wrong motives or secret disloyalties (cf. 1 Cor. 16:22). As God has poured out His grace to us in all purity, so we should pour out our love to Him in purity.
"Ephesians is ultimately about how God has powerfully equipped the church to experience blessing in Christ, by creating a new community that is able to honor God and resist the forces of evil. No longer does one's Jewish or Gentile identity dominate. They are part of a new, reconciled community, a reconciliation that involves not only God but also one another. All enablement in this new sacred community is rooted in what the exalted Christ has provided for His people. That is why believers can have hope, since they have begun participation in a wealth of benefits distributed from heaven. The church's members are citizens raised and seated with Jesus in a heavenly citizenship, though they represent Him now as light on the earth, fully enabled for the task. In all of this, God is taking steps toward the ultimate summation of all things in Christ."170
