Ezekiel 10:6-10

And it came about when He commanded the man clothed in linen, saying, “Take fire from between the whirling wheels, from between the cherubim,” he entered and stood beside a wheel.

Then the cherub reached out with his hand from between the cherubim to the fire which was between the cherubim, took some coals and put them into the hands of the one clothed in linen; and he took them and went out.

The cherubim appeared to have something like a human hand under their wings.

Then I looked, and behold, four wheels beside the cherubim, one wheel beside each cherub; and the appearance of the wheels was like the gleam of a Tarshish stone.

And as for their appearance, all four of them had the same likeness, as if one wheel were within another wheel.