But why bring in this high Christology here? The Christology serves the greater purpose of the letter by setting forth Christ as the exclusive instrument through whom God created the universe (vv. 15-17) and through whom he is in the process of pacifying the universe (vv. 18-20). The word pas (variously translated "all," "every," "each"), occurring eight times in these verses, is the thread that binds the verses together. Whatever precise form the false teaching at Colossae took, it is at least clear that it was tending to question Christ's exclusive role in providing spiritual growth and security, and, thereby, his exclusive role in the universe at large (see, e.g., 2:9-10, 19). The false teachers, it appears, argued from cosmology to spirituality: because the universe was filled with spiritual powers of various sorts, ultimate spiritual "fullness" could be achieved only by taking them all into consideration (see esp. Paul's counterargument in 2:14-15). Thus Paul in the hymn places particular emphasis on the supremacy of Christ-in both creation and redemption-over the powers (vv. 16, 20)
Moo, D. J. (2008). The letters to the Colossians and to Philemon (p. 111). Grand Rapids, MI: William B. Eerdmans Pub. Co.