'Pillar of Cloud' 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.

The angel of God, who went before the camp of Israel, moved and went behind them; and the pillar of cloud moved from before them, and stood behind them.

It happened, when Moses entered into the Tent, that the pillar of cloud descended, stood at the door of the Tent, and spoke with Moses.

All the people saw the pillar of cloud stand at the door of the Tent, and all the people rose up and worshiped, everyone at their tent door.