Revelation 4:6
and before the throne was as it were a sea of glass like crystal; and in the midst of the throne and about the throne were four living ones [cherubs] full of eyes before and behind.
Revelation 4:8
And the four cherubs had each six wings apiece. And they were full of eyes around and within, and they had no rest day nor night, saying, Holy, holy, holy is the Lord God Almighty the Was and the Is and the Is to come.
Treasury of Scripture Knowledge
Summary
As for their rings, they were so high that they were dreadful; and their rings were full of eyes round about them four.
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Bible References
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Revelation 4:6
and before the throne was as it were a sea of glass like crystal; and in the midst of the throne and about the throne were four living ones [cherubs] full of eyes before and behind.