And the living creatures ran and returned as the appearance of a flash of lightning.
The living creatures ran and returned. Incessant restless motion indicates the plenitude of life in these cherubim; so in Revelation 4:8, "They rest not day or night" (Zechariah 4:10, "The eyes of the Lord run to and fro through the whole earth").
As the appearance of a flash of lightning - rather, as distinct from "lightning" (Ezekiel 1:13), "the meteor-flash," or sheet-lightning (Fairbairn).