In the Book of Revelations, John has visions of Heaven including seeing God on His Throne:
3 and the One sitting there looked like a diamond and a ruby. There was a rainbow encircling the throne, and this looked like an emerald.
I know that other prophets have seen visions of God like Ezekiel, who describes God as a humanoid figure of polished bronze clothed in fire, but I’ve often interpreted that as God the Son, a pre-incarnate Christ. In this Vision John sees Jesus as a slaughtered lamb with seven eyes and seven horns, so who is The One on the Throne? What did John see?