14 And Moses went down from the mount unto the people, and sanctified the people; and they washed their clothes.
15 And he said unto the people, Be ready by the third day: come not near your wives.
16 And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceedingly loud; so that all the people that were in the camp trembled.
17 And Moses brought forth the people out of the camp to meet with God; and they stood at the lower part of the mount.
18 And mount Sinai was completely in smoke, because the LORD descended upon it in fire: and the smoke of it ascended as the smoke of a furnace, and the whole mount quaked greatly.
19 And when the voice of the trumpet sounded long, and grew louder and louder, Moses spoke, and God answered him by a voice.
20 And the LORD came down upon mount Sinai, on the top of the mount: and the LORD called Moses up to the top of the mount; and Moses went up.