Translations
And the likeness of the firmament upon the heads of the living creature was as the colour of the terrible crystal, stretched forth over their heads above.
Over the heads of the living beings was the likeness of a raqia — a dome like the gleam of awesome crystal — arched out over their heads above.
Over the heads of the living creatures spread the likeness of a vast expanse — dazzling as ice, breathtaking as crystal — stretched high above their heads.
Spread out above the heads of the living creatures was the likeness of an awesome expanse, gleaming like crystal.

