Exodus 13:21-22

Amplified Bible

²¹ The [presence of the] Lord was going before them by day in a pillar (column) of cloud to lead them along the way, and in a pillar of fire by night to give them light, so that they could travel by day and by night. ²² He did not withdraw the pillar of cloud by day, nor the pillar of fire by night, from going before the people.