Colossians / Question
Colossians says God reconciles "all things" to himself by making peace through the blood of Christ’s cross Colossians 1:20. It also applies this to the Colossians, saying they were reconciled in Christ’s body of flesh by his death Colossians 1:21–22.
In Colossians 1:15–20 the writer presents a tightly linked portrait of Christ’s unmatched status. Christ makes the unseen God known, stands in a unique relation to creation, and is described as the agent, goal, and ongoing support of everything in heaven and on earth. This passage sits in the opening movement of the letter where the writer gives thanks, reports what he has heard about the community, and prays for their growth in understanding and endurance.
Colossians 1:15–20 presents Christ as unmatched in both creation and reconciliation.
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Colossians 1:20, then read the surrounding section so the answer stays connected to the passage's flow.
20and through him to reconcile all things to himself, having made peace through the blood of his cross. Through him, I say, whether things on the earth, or things in the heavens.