Ephesians 1:23

“Which is his body, &c.] That is, which church is the body of Christ; as an human body is but one, consisting of various members, united to each other, and set in an exact proportion and symmetry, and in a proper subservience to one another, and which must be neither more nor fewer than they are; so the church of Christ is but one general assembly, which consists of many persons, of different gifts and usefulness, and are all united together under one head, Christ, whose name they bear, and are made to drink of the same Spirit; and these are placed in such order, as throw a glory and comeliness on each other, and to be useful to one another, so that it cannot be said of the meanest member,…”

“his body--His mystical and spiritual, not literal, body. Not, however, merely figurative, or metaphorical. He is really, though spiritually, the Church's Head. His life is her life. She shares His crucifixion and His consequent glory. He possesses everything, His fellowship with the Father, His fulness of the Spirit, and His glorified manhood, not merely for Himself, but for her, who has a membership of His body, of His flesh, and of His bones (Eph 5:30). fulness--"the filled-up receptacle" [EADIE]. The Church is dwelt in and filled by Christ. She is the receptacle, not of His inherent, but of His communicated, plenitude of gifts and graces. As His is the "fulness" (Joh 1:16; Col 1:19; Col…”

“Which is his body - This comparison of the church with “a person” or body, of which the Lord Jesus is the head, is not uncommon in the New Testament; compare the notes at 1Co 11:3; 1 Corinthians 12:27, note; Ephesians 4:15-16, notes. The fulness of him - The word rendered here as “fulness” - πλήρωμα plērōma - means properly, that with which anything is filled; the filling up; the contents; notes, Romans 11:12. The exact idea here, however, is not very clear, and interpreters have been by no means united in their opinions of the meaning. It seems probable that the sense is, that the church is the “completion or filling up” of his power and glory. It is that without which his dominion would…”

“The fulness of him that filleth all in all - It is hard to say in what sense this can be spoken of the church; but the sense is easy and natural, if we refer it to Christ, who is the fulness of the Father. Next: Ephesians Chapter 2”

“1:23 it is made full and complete by Christ, who fills all things everywhere with himself (or it is the full expression of the one who fills everything everywhere): This difficult phrase probably means that the church, as his body, is the full expression of Christ in this world. His presence, which fills the entire universe (4:10), is reflected in and works through his body.”

“his: Eph 2:16, Eph 4:4, Eph 4:12, Eph 5:23-32; Rom 13:5; 1Cor. 12:12-27; Col 1:18, Col 1:24, Col 3:15 fulness: Eph 3:19, Eph 4:10; Joh 1:16; Co1 12:6, Co1 15:28; Col 1:19, Col 2:9, Col 2:10, Col 3:11 Next: Ephesians Chapter 2”