'Pillar of Fire' in the Bible

Yahweh went before them by day in a pillar of cloud, to lead them on their way, and by night in a pillar of fire, to give them light, that they might go by day and by night:

the pillar of cloud by day, and the pillar of fire by night, didn't depart from before the people.

It happened in the morning watch, that Yahweh looked out on the Egyptian army through the pillar of fire and of cloud, and confused the Egyptian army.

and they will tell it to the inhabitants of this land. They have heard that you Yahweh are in the midst of this people; for you Yahweh are seen face to face, and your cloud stands over them, and you go before them, in a pillar of cloud by day, and in a pillar of fire by night.

Moreover, in a pillar of cloud you led them by day; and in a pillar of fire by night, to give them light in the way in which they should go.

yet you in your manifold mercies didn't forsake them in the wilderness: the pillar of cloud didn't depart from over them by day, to lead them in the way; neither the pillar of fire by night, to show them light, and the way in which they should go.