Exodus 19:15-17

New Century Version

¹⁵ Then Moses said to the people, “Be ready in three days. Do not have sexual relations during this time.”

¹⁶ On the morning of the third day, there was thunder and lightning with a thick cloud on the mountain. There was a very loud blast from a trumpet, and all the people in the camp trembled. ¹⁷ Then Moses led the people out of the camp to meet God, and they stood at the foot of the mountain.