Exodus 19:10–22

¹⁰Then the Lord told Moses, “Go down and prepare the people for my arrival. Consecrate them today and tomorrow, and have them wash their clothing. ¹¹Be sure they are ready on the third day, for on that day the Lord will come down on Mount Sinai as all the people watch. ¹²Mark off a boundary all around the mountain. Warn the people, ‘Be careful! Do not go up on the mountain or even touch its boundaries. Anyone who touches the mountain will certainly be put to death. ¹³No hand may touch the person or animal that crosses the boundary; instead, stone them or shoot them with arrows. They must be put to death.’ However, when the ram’s horn sounds a long blast, then the people may go up on the mountain.”

¹⁴So Moses went down to the people. He consecrated them for worship, and they washed their clothes. ¹⁵He told them, “Get ready for the third day, and until then abstain from having sexual intercourse.”

¹⁶On the morning of the third day, thunder roared and lightning flashed, and a dense cloud came down on the mountain. There was a long, loud blast from a ram’s horn, and all the people trembled. ¹⁷Moses led them out from the camp to meet with God, and they stood at the foot of the mountain. ¹⁸All of Mount Sinai was covered with smoke because the Lord had descended on it in the form of fire. The smoke billowed into the sky like smoke from a brick kiln, and the whole mountain shook violently. ¹⁹As the blast of the ram’s horn grew louder and louder, Moses spoke, and God thundered his reply. ²⁰The Lord came down on the top of Mount Sinai and called Moses to the top of the mountain. So Moses climbed the mountain.

²¹Then the Lord told Moses, “Go back down and warn the people not to break through the boundaries to see the Lord, or they will die. ²²Even the priests who regularly come near to the Lord must purify themselves so that the Lord does not break out and destroy them.”