Below is a clear cut explanation of who Christ is. It is not possible to overstate what a BIG deal this is. He is the one who holds everything together.

Colossians 1:15-17
He is the image of the invisible God, the firstborn of all creation.

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.
And he is before all things, and in him all things hold together.
Bible Gateway Link: Colossians 1:15-17