Exodus 19:14-18 Common English Bible (CEB)

14. So Moses went down the mountain to the people. He made sure the people were holy and that they washed their clothes.

15. He told the men, "Prepare yourselves for three days. Don’t go near a woman."

16. When morning dawned on the third day, there was thunder, lightning, and a thick cloud on the mountain, and a very loud blast of a horn. All the people in the camp shook with fear.

17. Moses brought the people out of the camp to meet God, and they took their place at the foot of the mountain.

18. Mount Sinai was all in smoke because the Lord had come down on it with lightning. The smoke went up like the smoke of a hot furnace, while the whole mountain shook violently.

Exodus 19