English Standard Version
Over the heads of the living creatures there was the likeness of an expanse, shining like awe-inspiring crystal, spread out above their heads.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