New Revised Standard Version
The living creatures darted to and fro, like a flash of lightning.

Contemporary English Version
The creatures themselves moved as quickly as sparks jumping from a fire.

New American Bible
The creatures darting back and forth flashed like lightning.

Douay-Rheims Bible
And the living creatures ran and returned like flashes of lightning.

And the living creatures ran and returned like flashes of lightning.

Psalm 147:15 Who sendeth forth his speech to the earth: his word runneth swiftly.

Daniel 9:21 As I was yet speaking in prayer, behold the man, Gabriel, whom I had seen in the vision at the beginning, flying swiftly, touched me at the time of the evening sacrifice.

Zechariah 2:3,4 And behold the angel that spoke in me went forth, and another angel went out to meet him. . . .

Zechariah 4:10 For who hath despised little days? and they shall rejoice, and shall see the tin plummet in the hand of Zorobabel. These are the seven eyes of the Lord, that run to and fro through the whole earth.

Matthew 24:27,31 For as lightning cometh out of the east and appeareth even into the west: so shall also the cowling of the Son of man be. . . .

Mark 13:27 And then shall he send his angels and shall gather together his elect from the four winds, from the uttermost part of the earth to the uttermost part of heaven.