SHEMOT 33

9 And it came to pass, as Moshe entered into the Ohel, the Ammud of the Anan descended, and stood at the petach Ohel, and Hashem would speak with Moshe. 10 And kol HaAm saw the Ammud of the Anan stand at the petach Ohel; and kol HaAm rose up and worshiped, every man in his petach ohel.