Exodus 19:15-17

21st Century King James Version

¹⁵ And he said unto the people, “Be ready against the third day. Come not at your wives.”

¹⁶ And it came to pass on the third day in the morning, that there were thunders and lightnings and a thick cloud upon the mount, and the voice of the trumpet exceeding loud, so that all the people who were in the camp trembled.

¹⁷ And Moses brought forth the people out of the camp to meet with God, and they stood at the nether part of the mount.