Exodus 19:15-17 Amplified Bible (AMP)
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.
Exodus 19:15-17 New International Version (NIV)
15 Then he said to the people, “Prepare yourselves for the third day. Abstain from sexual relations.”
16 On the morning of the third day there was thunder and lightning, with a thick cloud over the mountain, and a very loud trumpet blast. Everyone in the camp trembled. 17 Then Moses led the people out of the camp to meet with God, and they stood at the foot of the mountain.