Exodus 19:18-20

21st Century King James Version

¹⁸ And Mount Sinai was altogether in smoke, because the Lord descended upon it in fire; and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly.

¹⁹ And when the voice of the trumpet sounded long and waxed louder and louder, Moses spoke, and God answered him by a voice.

²⁰ And the Lord came down upon Mount Sinai, on the top of the mount; and the Lord called Moses up to the top of the mount, and Moses went up.