“Therefore, since Jesus is delivered to you as Christ and Lord, live your lives in union with Him. Be rooted in Him; be built in Him; be consolidated in the faith you are taught; let your hearts overflow with thankfulness.”
“In Him you are brought to completion,” writes Paul. (Colossians 2:10)
Add nothing to Christ. Live united to Him as a plant is to its root. He is your foundation; you are His building. What does a plant add to the root? What does a building do for its foundation? Christ is the vine; we are the branches.
“Christ has forgiven us all our sins; He has cancelled the bond which pledged us to the decrees of the law. It stood against us, but He has set it aside, nailing it to the cross. On that cross He discarded the cosmic powers and authorities like a garment; He made a public spectacle of them and led them as captives in His triumphal procession.” (Colossians 2:13-15)
The law has no power over us because Christ removed it “like a garment.” He literally tossed “it aside, nailing it to the cross.”
We live by faith. We are made complete in Christ.