Revelation 4:6-9

6 And before the throne there was a sea of glass like to crystal: and in the middle of the throne, and round about the throne, were four beasts full of eyes before and behind.

7 And the first beast was like a lion, and the second beast like a calf, and the third beast had a face as a man, and the fourth beast was like a flying eagle.

8 And the four beasts had each of them six wings about him; and they were full of eyes within: and they rest not day and night, saying, Holy, holy, holy, LORD God Almighty, which was, and is, and is to come.

9 And when those beasts give glory and honor and thanks to him that sat on the throne, who lives for ever and ever,