에스겔 1:16

그 바퀴의 형상과 그 구조는 넷이 한결 같은데 황옥 같고 그 형상과 구조는 바퀴 안에 바퀴가 있는 것 같으며

The appearance of the wheels and their work was like unto the colour of a beryl: and they four had one likeness: and their appearance and their work was as it were a wheel in the middle of a wheel.