Above the expanse over their heads was the likeness of a throne with the appearance of sapphire, and on the throne high above was a figure like that of a man. — Ezekiel 1:26
Ezekiel saw on the throne the appearance of a man. That's the God-Man, Jesus Christ, the one mediator between God and men. He emptied Himself, took the form of a servant, and was made in human likeness. He shared in our flesh and blood, died, and rose again. Now He's ascended and seated at God's right hand, and in Him all the fullness of deity dwells bodily.