Colossians 2:9

In him dwelleth all the fulness of the Godhead bodily. — Here almost every word is emphatic. First, “All the fulness of the Godhead” — not a mere emanation from the Supreme Being. Next, “dwells” and remains for ever — not descending on Him for a time and leaving Him again. Lastly, “bodily,” i.e., as incarnate in His humanity. The whole is an extension and enforcement of Colossians 1:19, “God was pleased that in Him all the fulness should dwell.” The horror of all that was material, as having in it the seed of evil, induced denial either of the reality of our Lord’s body, or of its inseparable connection with the Godhead in Him. Hence the emphasis here; as also we find (somewhat later) in St. John, “The Word was made flesh” (John 1:14); “The spirit which confesseth not that Jesus Christ is come in the flesh... is the spirit of antichrist” (1 John 4:3).

On the meaning of “fullness” (plerorna), see Colossians 1:10; Ephesians 1:3; Ephesians 3:19; Ephesians 4:13. Here it is only necessary to add, that, as in the later Gnosticism, so probably in its earlier forms, the word was used for the infinite nature of the Supreme Deity, out of which all the emanations (afterwards called Æons) received in various degrees of imperfection, according to their capacity. Probably for that reason St. Paul uses it so emphatically here. In the same spirit, St. John declares (John 1:16), “Out of His (Christ’s) fulness have all we received.” It is not finite, but infinitely perfect; hence we all can draw from it, yet leave it unimpaired.