¹⁶ 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. ¹⁷ When they went, they went upon their four sides: and they turned not when they went. ¹⁸ As for their rings, they were so high that they were dreadful; and their rings were full of eyes round about them four.