'Pillar' in the Bible

Then the LORD came down in a pillar of cloud, stood at the entrance to the Tent of Meeting, and summoned Aaron and Miriam. So both of them went forward.

they'll also proclaim to the inhabitants of this land that they've heard you're among this people, LORD, whom they've seen face to face, since your cloud stands guard over them. You've guided them with a pillar of cloud by day and with a pillar of fire by night.