Revelation 4:6-9

6And before the throne was something like a sea of glass, like crystal. In the middle of the throne and around it were four living creatures, full of eyes in front and behind.

7The first living creature was like a lion, the second living creature was like an ox, the third living creature had a face like a man, and the fourth living creature was like a flying eagle.

8The four living creatures, each having six wings, were full of eyes all around and within. They do not rest day or night, chanting, “Kadosh, kadosh, kadosh Adonai Elohei-Tzva’ot, asher haya v’hoveh v’yavo! Holy, holy, holy is the Lord God of Hosts, who was and who is and who is to come!”

9And whenever the living creatures give glory and honor and thanks to the One seated on the throne, who lives forever and ever,