For in him the whole fullness of deity dwells bodily, and you have come to fullness in him, who is the head of every ruler and authority. In him also you were circumcised with a spiritual circumcision, by putting off the body of the flesh in the circumcision of Christ; when you were buried with him in baptism, you were also raised with him through faith in the power of God, who raised him from the dead. And when you were dead in trespasses and the uncircumcision of your flesh, God made you alive together with him, when he forgave us all our trespasses, erasing the record that stood against us with its legal demands. He set this aside, nailing it to the cross. He disarmed the rulers and authorities and made a public example of them, triumphing over them in it. (Col 2:9-15; NRSV)
Commenting on this passage’s teaching about theosis and the transformative nature of salvation to believers, one scholar wrote the following:
Participating in Christ’s Fullness Christ has not only delivered his people from the domain of darkness, but he has brought them into his kingdom and bestowed on them his salvation . . . What Paul says about Christ [in Col 2:9] he immediately applies to the church by declaring, “in him you are filled” (εστε εν αυτω πεπληρωμενοι). The “in him” (εν αυτω) marks a major motif of the entire theological section of 2:9-15. Paul is hereby attempting to help these believers understand the full significance of being in Christ, especially as it relates to their concern about supernatural powers and their temptation to follow the solution offered by “the philosophy.” His solution is for them to gain a fuller- appreciation for their resources in Christ and to grasp hold of their leader and supplier (2:19) and to concentrate on the things above where Christ is at the right hand of God (3:1).
The fullness of God—his power and his grace—are bestowed on believers by virtue of their incorporation into Christ. As Lightfoot has said, God’s πληρωμα is “transfused” into them. The perfect periphrastic construction (εστε . . .πεπληρωμενοι) emphasises their share in the divine fullness as part of their present experience. (Clinton Arnold, The Colossian Syncretism [Tubingen: J.C.B. Mohr, 1995], 293-95)
