Exodus 19:3-17
19:3 Moses went up to God, and the Lord called to him from the mountain, “Thus you will tell the house of Jacob, and declare to the people of Israel:
19:4 ‘You yourselves have seen what I did to Egypt and how I lifted you on eagles’ wings and brought you to myself.
19:5 And now, if you will diligently listen to me and keep my covenant, then you will be my special possession out of all the nations, for all the earth is mine,
19:6 and you will be to me a kingdom of priests and a holy nation.’ These are the words that you will speak to the Israelites.”
19:7 So Moses came and summoned the elders of Israel. He set before them all these words that the Lord had commanded him,
19:8 and all the people answered together, “All that the Lord has commanded we will do!” So Moses brought the words of the people back to the Lord.
19:9 The Lord said to Moses, “I am going to come to you in a dense cloud, so that the people may hear when I speak with you and so that they will always believe in you.” And Moses told the words of the people to the Lord.
19:10 The Lord said to Moses, “Go to the people and sanctify them today and tomorrow, and make them wash their clothes
19:11 and be ready for the third day, for on the third day the Lord will come down on Mount Sinai in the sight of all the people.
19:12 You must set boundaries for the people all around, saying, ‘Take heed to yourselves not to go up on the mountain nor touch its edge. Whoever touches the mountain will surely be put to death!
19:13 No hand will touch him – but he will surely be stoned or shot through, whether a beast or a human being; he must not live.’ When the ram’s horn sounds a long blast they may go up on the mountain.”
19:14 Then Moses went down from the mountain to the people and sanctified the people, and they washed their clothes.
19:15 He said to the people, “Be ready for the third day. Do not go near your wives.”
19:16 On the third day in the morning there was thunder and lightning and a dense cloud on the mountain, and the sound of a very loud horn; all the people who were in the camp trembled.
19:17 Moses brought the people out of the camp to meet God, and they took their place at the foot of the mountain.