Exodus 19:16-24

161So it came about on the third day, when it was morning, that there were 2thunder and lightning flashes and a thick cloud over the mountain and a very loud trumpet sound, so that all the people who were in the camp trembled.

17And Moses brought the people out of the camp to meet God, and they stood at the 3foot of the mountain.

184Now Mount Sinai was all in smoke because the Lord descended upon it 5in fire; and its smoke ascended like 6the smoke of a furnace, and 7the entire mountain 8quaked violently.

19When the sound of the trumpet grew louder and louder, Moses spoke, and 9God answered him with 10thunder.

20Then 11the Lord came down on Mount Sinai, to the top of the mountain; and the Lord called Moses to the top of the mountain, and Moses went up.

21Then the Lord spoke to Moses: “Go down, 12warn the people, so that 13they do not break through to the Lord to stare, and many of them 14perish.

22Also have the 15priests who approach the Lord consecrate themselves, or else the Lord will break out against them.”

23And Moses said to the Lord, “The people cannot come up to Mount Sinai, for You 16warned us, saying, ‘17Set boundaries around the mountain and consecrate it.’”

24Then the Lord said to him, “18Go down and come up again, 19you and Aaron with you; but do not let the 20priests and the people break through to come up to the Lord, or He will break out against them.”