Revelation 4:4-8 New Revised Standard Version (NRSV)
4 Around the throne are twenty-four thrones, and seated on the thrones are twenty-four elders, dressed in white robes, with golden crowns on their heads. 5 Coming from the throne are flashes of lightning, and rumblings and peals of thunder, and in front of the throne burn seven flaming torches, which are the seven spirits of God; 6 and in front of the throne there is something like a sea of glass, like crystal.
Around the throne, and on each side of the throne, are four living creatures, full of eyes in front and behind: 7 the first living creature like a lion, the second living creature like an ox, the third living creature with a face like a human face, and the fourth living creature like a flying eagle. 8 And the four living creatures, each of them with six wings, are full of eyes all around and inside. Day and night without ceasing they sing,
“Holy, holy, holy,