Charles Ellicott Commentary Ephesians 5:30

"because we are members of his body." — Ephesians 5:30 (ASV)

Even as the Lord the church: for we . . .—Again Saint Paul escapes from the type to rest on the Antitype . The idea of the natural rearing and cherishing the body suggests the thought of the tender care of Christ, in which He “rears up” His Church from weak infancy to full maturity in heaven, and all the while “cherishes it” (compare to 1 Thessalonians 2:7, spoken of His servants) as a nurse cherishes her children, carrying it in His bosom (Isaiah 40:11), comforting and cheering its childlike weakness. Therefore, he returns to speak with great and special emphasis of our unity with Him.

Of his flesh, and of his bones.—Literally, made out of His flesh and bones—parts, that is, of His glorified body, having flesh and bones (Luke 24:39). The expression is unique, suggested, of course, by Genesis 2:23, This is now bone of my bone, and flesh of my flesh, but designed to bring out in a startling emphasis the true meaning of the familiar phrase, the members of His body. We are grafted into Him. What we grow to be is, so to speak, the product of His divine substance, proceeding from the indwelling life which gradually forms the organised limbs.