Revelation 4:5-7

5From the throne came flashes of lightning, rumblings and peals of thunder. In front of the throne, seven lamps were blazing. These are the seven spirits of God. 6Also in front of the throne there was what looked like a sea of glass, clear as crystal. In the center, around the throne, were four living creatures, and they were covered with eyes, in front and in back. 7The first living creature was like a lion, the second was like an ox, the third had a face like a man, the fourth was like a flying eagle.