Exodus 19:16-18

Darby Translation

¹⁶ And it came to pass on the third day, when it was morning, that there were thunders and lightnings and a heavy cloud on the mountain, and the sound of the trumpet exceeding loud; and the whole people that was in the camp trembled.

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

¹⁸ And the whole of mount Sinai smoked, because Jehovah descended on it in fire; and its smoke ascended as the smoke of a furnace; and the whole mountain shook greatly.