Exodus 33:9 (WEB)
When Moses entered into the Tent, the pillar of cloud descended, stood at the door of the Tent, and the LORD spoke with Moses.
Catechism · 1
“In the theophanies of the Old Testament, the cloud, now obscure, now luminous, reveals the living and saving God, while veiling the transcendence of his glory - with Moses on Mount Sinai, at the tent of meeting,” — Catechism footnote: Cf. Ex 33:9-10.
