Ephesians 3:21

“Unto him be glory in the church by Christ Jesus, &c.] This is a doxology, or an ascription of glory to God, with which the apostle concludes his prayer; glory is to be given to God on account of his perfections, which are to be celebrated; and on account of the works of creation and Providence, which are to be commended and acquiesced in; and on account of temporal mercies, for which thanks should be given; and especially for spiritual mercies, and above all for Jesus Christ: the glory of salvation, from first to last, is to be ascribed to his free grace; and his worship is to be regarded and constantly attended on; faith is to be exercised on him, as a promising and covenant keeping God;…”

“Translate, "Unto Him be the glory (that is, the whole glory of the gracious dispensation of salvation just spoken of) in the Church (as the theater for the manifestation of the glory, Eph 3:10) in Christ Jesus (as in Him all the glory centers, Zac 6:13) to all the generations of eternal ages," literally, "of the age of the ages." Eternity is conceived as consisting of "ages" (these again consisting of "generations") endlessly succeeding one another. Next: Ephesians Chapter 4”

“Unto him be glory - see the notes, Romans 16:27. In the church - Or, by the church; Ephesians 3:10. The church was to be the instrument by which the glory of God would be shown; and it was by the church that his praise would be celebrated. Throughout all ages, world without end - There is a richness and amplification of language here which shows that his heart was full of the subject, and that it was difficult to find words to express his conceptions. It means, in the strongest sense, forever. It is one of “the apostle’s self-invented phrases” (Bloomfield); and Blackwall says that no version can fully express the meaning. It is literally, “Unto all generations of the age of ages,” or “unto…”

“In the church - On earth and in heaven. Next: Ephesians Chapter 4”

“3:21 The church—the community of believers, both Jews and Gentiles—is to be the reflection and full expression of the glory of God.”

“be: Eph 1:6; Ch1 29:11; Psa 29:1, Psa 29:2, Psa 72:19, Psa 115:1; Isa 6:3, Isa 42:12; Mat 6:13; Luk 2:14; Rom 11:36, Rom 16:27; Gal 1:5; Phi 2:11, Phi 4:20; Ti2 4:18; Heb 13:21; Pe1 5:11; Rev 4:9-11, Rev 5:9-14, Rev 7:12-17 by: Phi 1:11; Heb 13:15, Heb 13:16; Pe1 2:5 throughout: Eph 2:7; Pe1 5:11; Pe2 3:18; Jde 1:25 Next: Ephesians Chapter 4”