'Cloud' in the Bible

And thou leddest them in the day by a pillar of cloud, and in the night by a pillar of fire, to give them light in the way wherein they should go.

yet thou in thy manifold mercies forsookest them not in the wilderness. The pillar of the cloud departed not from over them by day, to lead them on the way; neither the pillar of fire by night, to shew them light, and the way wherein they should go.