Revelation 4:1-6

After this I looked,
and there before me was a door standing open in heaven,
And the voice I had first heard speaking to me
like a trumpet said,
"Come up here,
and I will show you what must take place after this."

At once I was in the Spirit,
and there before me was a throne in heaven
with someone sitting on it.
And the one who sat there
had the appearance of Jasper and carnelian.
A rainbow,
resembling an emerald,
encircled the throne.
Surrounding the throne
where twenty-four other thrones,
and seated on them were twenty-four elders.
They were dressed in white
and had crowns of gold on their heads.
From the throne came flashes of lightning,
rumblings and peals of thunder.
Before the throne,
seven lamps were blazing.
These are the seven spirits of God.
Also before the throne
there was what looked like a sea of class,
clear as crystal.

(Revelation 4:1-6)