17 And when Moses had brought them forth to meet God from the place of the camp, they stood at the bottom of the mount.
18 And all mount Sinai was on a smoke: because the Lord was come down upon it in fire, and the smoke arose from it as out of a furnace: and all the mount was terrible.
19 And the sound of the trumpet grew by degrees louder and louder, and was drawn out to a greater length: Moses spoke, and God answered him.
20 And the Lord came down upon mount Sinai, in the very top of the mount, and he called Moses unto the top thereof. And when he was gone up thither,
21 He said unto him: Go down, and charge the people: lest they should have a mind to pass the limits to see the Lord, and a very great multitude of them should perish.
22 The priests also that come to the Lord, let them be sanctified, lest he strike them.
23 And Moses said to the Lord: The people cannot come up to mount Sinai: for thou did charge, and command, saying: Set limits about the mount, and sanctify it.