Yechezkel 1:12-14

Orthodox Jewish Bible

¹² And they went every one face forward; whither the Ruach was to go, they went; and they turned not when they went.

¹³ As for the demut of the Chayos, their appearance was like coals of eish burning, and like the appearance of lapidim (torches); it spread back and forth among the Chayos; and the eish was brilliant, and out of the eish went forth barak (lightning).

¹⁴ And the Chayos ran and returned as the appearance of bazak (a flash of lightning).