Ezekiel 1:15-17
15 When I looked at the living creatures, there was one wheel on the ground beside each creature that had four faces.
16 The appearance of the wheels(A) and their craftsmanship was like the gleam of beryl,(B) and all four had the same form. Their appearance and craftsmanship was like a wheel within a wheel.
17 When they moved, they went in any of the four directions, without pivoting as they moved.