Exodus 19:10–19

¹⁰And the Lord said to Moses, “Go to the people and consecrate them today and tomorrow, and let them wash their garments, ¹¹and be ready by the third day; for on the third day the Lord will come down upon Mount Sinai in the sight of all the people. ¹²And you shall set bounds for the people round about, saying, ‘Take heed that you do not go up into the mountain or touch the border of it; whoever touches the mountain shall be put to death; ¹³no hand shall touch him, but he shall be stoned or shot; whether beast or man, he shall not live.’ When the trumpet sounds a long blast, they shall come up to the mountain.” ¹⁴So Moses went down from the mountain to the people, and consecrated the people; and they washed their garments. ¹⁵And he said to the people, “Be ready by the third day; do not go near a woman.”

¹⁶On the morning of the third day there were thunders and lightnings, and a thick cloud upon the mountain, and a very loud trumpet blast, so that all the people who were in the camp trembled. ¹⁷Then Moses brought the people out of the camp to meet God; and they took their stand at the foot of the mountain. ¹⁸And Mount Sinai was wrapped in smoke, because the Lord descended upon it in fire; and the smoke of it went up like the smoke of a kiln, and the whole mountain quaked greatly. ¹⁹And as the sound of the trumpet grew louder and louder, Moses spoke, and God answered him in thunder.