Exodus 19:18-20

New Catholic Bible

¹⁸ Mount Sinai was wrapped in smoke, for the Lord had descended upon it in fire and the smoke rose up like the smoke of a furnace. The entire mountain trembled. ¹⁹ The sound of the trumpet grew louder and louder. Moses spoke and God responded with the sound of a trumpet.

²⁰ The Lord thus descended upon Mount Sinai, on the mountain peak, and he called out to Moses upon the mountain peak. Moses went up the mountain.