Exodus 19:15-17 Douay-Rheims 1899 American Edition (DRA)
15 He said to them: Be ready against the third day, and come not near your wives.
16 And now the third day was come, and the morning appeared: and behold thunders began to be heard, and lightning to flash, and a very thick cloud to cover the mount, and the noise of the trumpet sounded exceeding loud, and the people that was in the camp, feared.
17 And when Moses had brought them forth to meet God from the place of the camp, they stood at the bottom of the mount.
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.