Jerome

And I saw, and behold, there were four wheels beside the Cherubim. One wheel beside one Cherub, and another wheel beside another Cherub. The appearance of the wheels was like the gleam of a chrysolite stone, and they all had the same likeness, like a wheel within a wheel. When they moved, they went in the four directions without turning as they went. And the wheels went toward the place where the first wheel went, and they followed in its tracks and did not turn back. …

Commentary on Ezekiel ↗