In the thirtieth year on the fifth day of the fourth month, as I was among the exiles by the river Chebar, the heavens opened, and I saw visions of God.
The appearance and structure of the wheels was like the gleaming of beryl. The four had the same likeness, their appearance and their structure seemed to be a wheel within a wheel.
When they went, they would go in any of their four directions, without pivoting as they went. So to whatever place the head faced, they followed, without turning as they went.
Then I looked, and behold, four wheels beside the cheruvim, one wheel beside one cheruv, and another wheel beside another cheruv. The appearance of the wheels was like the sparkling of a beryl stone.