“Moses entered into the middle of the cloud, and went up on the mountain; and Moses was on the mountain forty days and forty nights.”
Exodus 24:18 (WEB)
Context Reading
16Yahweh’s glory settled on Mount Sinai, and the cloud covered it six days. The seventh day he called to Moses out of the middle of the cloud. 17The appearance of Yahweh’s glory was like devouring fire on the top of the mountain in the eyes of the children of Israel. 18Moses entered into the middle of the cloud, and went up on the mountain; and Moses was on the mountain forty days and forty nights.