Revelation 4:6
And in front of the throne as it seemed, a glassy sea like crystal; and in the midst of the throne and encircling it are four Living Creatures, full of eyes before and behind.
Revelation 4:8
And the four Living Creatures, each one with six wings, are full of eyes round about and within; day and night they are chanting ceaselessly. "Holy, holy, holy is the Lord God, the Almighty. Who was, and who is, and who 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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Revelation 4:6
And in front of the throne as it seemed, a glassy sea like crystal; and in the midst of the throne and encircling it are four Living Creatures, full of eyes before and behind.