Exodus 19:18-20

Darby Translation

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.

¹⁹ And the sound of the trumpet increased and became exceeding loud; Moses spoke, and God answered him by a voice.

²⁰ And Jehovah came down on mount Sinai, on the top of the mountain; and Jehovah called Moses to the top of the mountain, and Moses went up.