Thematic Bible: The four living creatures

And before the throne there was a sea of glass, like crystal. And in the middle of the throne, in the circle about the throne, there were four living creatures, full of eyes, before and behind. And the first creature was like a lion; and the second creature was like a calf; and the third creature had a face like a man; and the fourth creature was like a flying eagle. And the four living creatures had, each of them, six wings round about; and within they were full of eyes: and they rest not, day or night, saying, Holy, holy, holy, Lord God Almighty, who wast, and art, and art to come.