Unto him be glory in the church by (properly, in) Christ Jesus. — In the parallelism of these clauses is implied the great idea of the Epistle — the unity of the Church in Christ. Hence all that is “in the Church” is “in Christ Jesus.” The visible unity of the Church represents, as it depends on, the invisible unity with God in Him.
Throughout all ages, world without end. — The original expression is emphatic and peculiar: to all the generations of the age of the ages; that is, in each successive generation of that age (or, dispensation) which includes in itself all the ages which we can reckon or conceive. The conception represents to us each generation, as adding its own peculiar thanksgiving to the great chorus of praise which fills eternity.