Exodus 19:18–20

18 Now rMount Sinai was wrapped in smoke because the Lord had descended on it in fire. The smoke of it went up like the smoke of a kiln, and sthe whole mountain trembled greatly. 19 And as the osound of the trumpet grew louder and louder, Moses spoke, and tGod answered him in thunder. 20 The 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.