Exodus 24:15-18

King James Version

¹⁵ And Moses went up into the mount, and a cloud covered the mount.

¹⁶ And the glory of the Lord abode upon mount Sinai, and the cloud covered it six days: and the seventh day he called unto Moses out of the midst of the cloud.

¹⁷ And the sight of the glory of the Lord was like devouring fire on the top of the mount in the eyes of the children of Israel.

¹⁸ And Moses went into the midst of the cloud, and gat him up into the mount: and Moses was in the mount forty days and forty nights.