'Cloud' in the Bible

who went in the way before you, to search you out a place for your encamping, in fire by night, to shew you by what way ye should go, and in the cloud by day.

These words Jehovah spoke to all your congregation on the mountain from the midst of the fire, of the cloud, and of the obscurity, with a great voice, and he added no more; and he wrote them on two tables of stone, and gave them to me.

And Jehovah appeared at the tent in the pillar of cloud; and the pillar of cloud stood over the entrance to the tent.