Kolosser 1:19

Greek, "(God) was well pleased," &c. in him--that is, in the Son (Mat 3:17). all fulness--rather as Greek, "all the fulness," namely, of God, whatever divine excellence is in God the Father (Col 2:9; Eph 3:19; compare Joh 1:16; Joh 3:34). The Gnostics used the term "fulness," for the assemblage of emanations, or angelic powers, coming from God. The Spirit presciently by Paul warns the Church, that the true "fulness" dwells in Christ alone. This assigns the reason why Christ takes precedence of every creature (Col 1:15). For two reasons Christ is Lord of the Church: (1) Because the fulness of the divine attributes (Col 1:19) dwells in Him, and so He has the power to govern the universe; (2) Because (Col 1:20) what He has done for the Church gives Him the right to preside over it. should . . . dwell--as in a temple (Joh 2:21). This indwelling of the Godhead in Christ is the foundation of the reconciliation by Him [BENGEL]. Hence the "and" (Col 1:20) connects as cause and effect the two things, the Godhead in Christ, and the reconciliation by Christ.

We have here, I. The inscription, as usual (Col 1:1, Col 1:2). II. His thanksgiving to God for what he had heard concerning them - their faith, love, and hope (Col 1:3-8). III. His prayer for their knowledge, fruitfulness, and strength (Col 1:9-11). IV. An admirable summary of the Christian doctrine concerning the operation of the Spirit, the person of the Redeemer, the work of redemption, and the preaching of it in the gospel (v. 12-29).

1:19 God in all his fullness emphasizes that God has chosen to reveal himself fully in Jesus Christ. Seeing Jesus and understanding him therefore means seeing and understanding God (see John 14:6-11). The false teachers seemed to be saying that Christians needed to look to other spiritual beings to find out more about God (see Col 1:16, 20). But Christ is sufficient for all our knowledge of God (cp. 2:8-9).