And the LORD went before them by day in a pillar of cloud to lead the way, and by night in a pillar of fire to give them light, so as to go by day and night.
Exodus 13:21
Surrounding context
13:20 So they took their journey from Succoth and camped in Etham at the edge of the wilderness.
13:21 And the LORD went before them by day in a pillar of cloud to lead the way, and by night in a pillar of fire to give them light, so as to go by day and night.
13:22 He did not take away the pillar of cloud by day or the pillar of fire by night from before the people.