15. speaking the truth—Translate, "holding the truth"; "following the truth"; opposed to "error" or "deceit" (Eph 4:14).
in love—"Truth" is never to be sacrificed to so-called "charity"; yet it is to be maintained in charity. Truth in word and act, love in manner and spirit, are the Christian's rule (compare Eph 4:21, 24).
grow up—from the state of "children" to that of "full-grown men." There is growth only in the spiritually alive, not in the dead.
into him—so as to be more and more incorporated with Him, and become one with Him.
the head—(Eph 1:22).