Exodus 13:21-22 Ex. 13:21-22
21 And the LORD went before them by day in a pillar of a cloud, to lead them the way; and by night in a pillar of fire, to give them light; to go by day and night: 22 He took not away the pillar of the cloud by day, nor the pillar of fire by night, from before the people.
Nehemiah 9:12 Neh. 9:12
Moreover thou leddest them in the day by a cloudy pillar; and in the night by a pillar of fire, to give them light in the way wherein they should go.
(Relation)