Colossians 1:19-20
For it was the Father’s good pleasure for all the fullness to dwell in Him, and through Him to reconcile all things to Himself, having made peace through the blood of His cross; through Him, I say, whether things on earth or things in heaven.
What was there to reconcile in heaven?
All of creation is being reconciled to God. Through Christ not just we ourselves, but all of creation, is to be healed and saved. Which is why we read that God will one day make all things new (Isaiah 65:17, Revelation 21:5), there will be a restoration of all things (Acts of the Apostles 3:21). Recall that St. Paul in the same letter to the Colossians writes just a couple verses earlier, "
For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him." (Colossians 1:16). "By Him and for Him" were all things made.
For Him. Christ is, as the Apostle says, the "firstborn" that is to say, the Pre-eminant One, "over all creation" (Colossians 1:15). He is the Word through which all things were made, and the Word for whom all things were made, the very Word that is the salvation and healing of the world, the renewal of all things. He is the First and the Last, the Beginning and the End, the Alpha and the Omega.
And So He was there, and He is why, the stars first birthed into existence in the beginning of the universe; He is the cause of and the reason for all things, and in Him and through Him all things--from the dirt beneath our feet right here on earth to the churning infernos of plasma in the heavens--shall have their eternal purpose and permanence. So that, in the end, it shall be just as we read, "that God may be all in all." (1 Corinthians 15:28).
-CryptoLutheran