Revelation 4:7-8
The 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. Each of the four living creatures had six wings and was covered with eyes all around, even under its wings. Day and night they never stop saying:
“ ‘Holy, holy, holy
is the Lord God Almighty,’4:8 Isaiah 6:3
who was, and is, and is to come.”