14 So Moses went down from the mountain to the people and sanctified the people, and they washed their clothes.
15 He said to the people, “Be ready for the third day. Do not go near your wives.”
16 So on the third day, in the morning, there was thunder and lightning, and a thick cloud on the mountain, and the sound of an exceedingly loud trumpet. All the people who were in the camp trembled.
17 Then Moses brought the people out of the camp to meet with God, and they stood at the foot of the mountain.
18 Now Mount Sinai was completely covered in smoke because the Lord had descended upon it in fire, and the smoke ascended like the smoke of a furnace, and the whole mountain shook violently.
19 When the sound of the trumpet grew louder and louder, Moses spoke, and God answered him with a voice.
20 The Lord came down on Mount Sinai, on the top of the mountain. And the Lord called Moses up to the top of the mountain, and Moses went up.