'Pillar of Cloud' in the Bible

Now, Yahweh, was going before them - by day, in a pillar of cloud to lead them the way, and by night, in a pillar of fire to give them light, - that they might journey day and night:

the pillar of cloud by day ceased not, nor the pillar of fire by night, - from before the people.

And the messenger of God who was going on before the camp of Israel removed, and came on behind them, - and the pillar of cloud removed from before them, and stood behind them;

And it came to pass that when Moses entered the tent, the pillar of cloud came down, and stood at the opening of the tent, - and spake with Moses.

And when all the people beheld the pillar of cloud, standing at the opening of the tent, then all the people rose up and bowed themselves down, every man at the entrance of his tent.