Revelation 4:3

And He who sat there was like a jasper and a sardius stone in appearance; and there was a rainbow around the throne, in appearance like an emerald.

·        God is not described by any human features, so as to be represented by an image, but only by his transcendent brightness (MH)

·        The rainbow was the seal and token of the covenant of providence that God made with Noah (MH)

Ezekiel 1:26  And above the firmament over their heads was the likeness of a throne, in appearance like a sapphire stone; on the likeness of the throne was a likeness with the appearance of a man high above it.

Daniel 7:9  I watched till thrones were put in place, and the Ancient of Days was seated:  His garment was white as snow, and the hair of His head was like pure wool.  His throne was a fiery flame.