King James Version
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.New International Version
Spread out above the heads of the living creatures was what looked like an expanse, sparkling like ice, and awesome.Catholic Public Domain Version
And above the heads of the living creatures was the likeness of a firmament: similar to crystal, but dreadful to behold, and extending over their heads from above