'Pillar of Fire' in the Bible

And the Lord went before them by day in a pillar of cloud, guiding them on their way; and by night in a pillar of fire to give them light: so that they were able to go on day and night:

The pillar of cloud went ever before them by day, and the pillar of fire by night.

And in the morning watch, the Lord, looking out on the armies of the Egyptians from the pillar of fire and cloud, sent trouble on the army of the Egyptians;

And they will give the news to the people of this land: they have had word that you, Lord, are present with this people, letting yourself be seen face to face, and that your cloud is resting over them, and that you go before them in a pillar of cloud by day and in a pillar of fire by night.

And you went before them by day in a pillar of cloud, and in a pillar of fire by night, to give them light on the way they were to go.

Even then, in your great mercy, you did not give them up in the waste land: the pillar of cloud still went before them by day, guiding them on their way, and the pillar of fire by night, to give them light, and make clear the way they were to go.