Shemot 19:15-16

Orthodox Jewish Bible

¹⁵ Then he said to HaAm, Be ready by Sheloshet Yamim; come not into your isha.

¹⁶ And it came to pass on the Yom HaShelishi when the boker was breaking, that there were thunderings and lightnings, and a heavy cloud upon HaHar, and the blast of the shofar exceeding loud; so that kol HaAm that was in the machaneh trembled with terror.