Ezekiel 1:13-17

In the midst of the living beings there was something that looked like burning coals of fire, like torches moving among the living beings. The fire was bright, and lightning was flashing from the fire.

And the living beings ran back and forth like bolts of lightning.

Now as I looked at the living beings, behold, there was one wheel on the ground beside the living beings, for each of the four of them.

The appearance of the wheels and their workmanship was like sparkling topaz, and all four of them had the same form, their appearance and workmanship being as if one wheel were within another.

Whenever they moved, they moved in any of their four directions without turning as they moved.