Ezekiel 1:5, 22, 26
Ezekiel 1:5 ESV
And from the midst of it came the likeness of four living creatures. And this was their appearance: they had a human likeness
Ezekiel 1:22 ESV
Over the heads of the living creatures there was the likeness of an expanse, shining like awe-inspiring crystal, spread out above their heads.