Jamieson, Fausset and Brown on Ephesians 4:16

16. (Col 2:19).

fitly joined together--"being fitly framed together," as in Ep 2:21; all the parts being in their proper position, and in mutual relation.

compacted--implying firm consolidation.

by that which every joint supplieth--Greek, "by means of every joint of the supply"; joined with "maketh increase of the body," not with "compacted." "By every ministering (supplying) joint." The joints are the points of union where the supply passes to the different members, furnishing the body with the materials of its growth.

effectual working--(Ep 1:19; 3:7). According to the effectual working of grace in each member (or else, rather, "according to each several member's working"), proportioned to the measure of its need of supply.

every part--Greek, "each one part"; each individual part.

maketh increase--Translate, as the Greek is the same as Ep 4:15, "maketh (carrieth on) the growth of the body."