Exodus 19:15-17

Amplified Bible

¹⁵ He said to the people, “Be prepared for the third day; do not ^[a]be intimate with a woman.”

¹⁶ So it happened on the third day, when it was morning, that there were thunder and flashes of lightning, and a thick cloud was on the mountain, and a very loud blast was sounded on a ram’s horn, so that all the people who were in the camp trembled. ¹⁷ Then Moses brought the people out of the camp to meet God, and they stood and presented themselves at the foot of the mountain.