Ezekiel 1:22 And the likeness of the firmament upon the heads of the living creature was as the color of the terrible
crystal, stretched forth over their heads above.
Revelation 4:6 And before the throne there was a sea of glass like unto
crystal; and in the midst of the throne were the four and twenty elders; and round about the throne, were four beasts full of eyes before and behind.
Revelation 22:1 And he showed me a pure river of water of life, clear as
crystal, proceeding out of the throne of God and of the Lamb.
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