Note 14 at Col. 1:19: "Fulness" (PLEROMA) is used twice in Colossians in referring to the deity of Jesus Christ (Col. 1:19; 2:9). The verb KATOIKEO (dwell) which was used in conjunction with "fulness" here "speaks of the fact that all the divine fulness is at home permanently in the Lord Jesus, at home in the sense that this divine fulness was not something added to His Being that was not natural to Him, but that it was part of His essential Being as part of His very constitution, and that permanently" (Word Studies in the Greek N.T., Vol. 1, p.187, by Kenneth S. Wuest).

This is a very clear reference to the deity of our Lord Jesus Christ (see ref. e in v. 17).