What does Ephesians 3:21 mean?

Paul's prayer ends this chapter, through a brief doxology in verses 20 and 21. Here, he includes glory to God, as well as noting where the glory should be seen: both in believers and in Jesus. The church should be pure, since it is designed to promote the glory of God. First Timothy 3:15 calls the church, "The household of God, which is the church of the living God, a pillar and buttress of the truth." The church, meaning the collection of all saved believers, is the family in which God's glory should reside and be clearly seen.

Finally, God's glory should extend beyond one age group or time. These words echo many of the Psalms (Psalm 33:11; 45:17; 61:6). When Mary learned she would give birth to Jesus, she exclaimed, "For behold, from now on all generations will call me blessed" (Luke 1:48). She recognized that Christ's glory would extend throughout the ages. Paul likewise sought for God's glory, through Christ, to be made known among all nations and all ages. His purpose was to see the hope of Jesus extended to every person (Matthew 28:18–20).