15. When Moses went up on the mountain, the cloud covered it.
16. The greatness of the Lord came down on Mount Sinai. The cloud covered the mountain for six days. On the seventh day the Lord called to Moses from inside the cloud.
17. The Israelites could see the greatness of the Lord. It looked like a fire burning on top of the mountain.
18. Then Moses went into the cloud and went higher up the mountain. Moses was on the mountain for 40 days and 40 nights.