'Pillar of Fire' in the Bible

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.

He did not withdraw the pillar of cloud by day, nor the pillar of fire by night, from going before the people.

So it happened at the early morning watch [before dawn], that the Lord looked down on the army of the Egyptians through the pillar of fire and cloud and put them in a state of confusion.