Christ is the visible image of the invisible God. He existed before anything was created and is supreme over all creation,
References for Colossians 1:15
for through him God created everything in the heavenly realms and on earth. He made the things we can see and the things we can’t see— such as thrones, kingdoms, rulers, and authorities in the unseen world. Everything was created through him and for him.
He existed before anything else, and he holds all creation together.
Christ is also the head of the church, which is his body. He is the beginning, supreme over all who rise from the dead. So he is first in everything.
References for Colossians 1:18
For God in all his fullness was pleased to live in Christ,
and through him God reconciled everything to himself. He made peace with everything in heaven and on earth by means of Christ’s blood on the cross.
This includes you who were once far away from God. You were his enemies, separated from him by your evil thoughts and actions.
Yet now he has reconciled you to himself through the death of Christ in his physical body. As a result, he has brought you into his own presence, and you are holy and blameless as you stand before him without a single fault.
But you must continue to believe this truth and stand firmly in it. Don’t drift away from the assurance you received when you heard the Good News. The Good News has been preached all over the world, and I, Paul, have been appointed as God’s servant to proclaim it.