Ezekiel 10:8-10

Revised Standard Version

⁸ The cherubim appeared to have the form of a human hand under their wings.

⁹ And I looked, and behold, there were four wheels beside the cherubim, one beside each cherub; and the appearance of the wheels was like sparkling chrysolite. ¹⁰ And as for their appearance, the four had the same likeness, as if a wheel were within a wheel.