Shemot 24:17-18

Orthodox Jewish Bible

¹⁷ And the sight of the Kevod Hashem was like eish ochelet (devouring fire) on the top of HaHar in the eyes of the Bnei Yisroel.

¹⁸ And Moshe went into the midst of the anan, going up into HaHar; and Moshe was in HaHar arba’im yom v’arba’im lailah.