Exodus 19:18-20

LEB(i) 18 And Mount Sinai was all wrapped in smoke because Yahweh went down on it in the fire, and its smoke went up like the smoke of a smelting furnace, and the whole mountain trembled greatly. 19 And the sound of the ram's horn became louder and louder,* and Moses would speak, and God would answer him with a voice. 20 And Yahweh went down on Mount Sinai, to the top of the mountain, and Yahweh called Moses to the top of the mountain, and Moses went up.