Exodus 19:7-15

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.”