10 And the Lord said unto Moses, Go unto the people and sanctify them today and tomorrow, and let them wash their clothes
11 and be ready for the third day; for the third day the Lord will come down in the sight of all the people upon Mount Sinai.
12 And thou shalt set bounds unto the people round about, saying, Take heed to yourselves that ye go not up into the mount or touch the border of it; whoever touches the mount shall surely die:
13 Not a hand shall touch it, but that he shall surely be stoned or shot through; whether it be beast or man, it shall not live. When the jubilee sounds long, they shall come up to the mount.
14 And Moses went down from the mount unto the people and sanctified the people, and they washed their clothes.
15 And he said unto the people, Be ready against the third day; come not at your women.
16 And it came to pass on the third day when the morning came, that there were thunders and lightnings and a thick cloud upon the mount and the voice of the shofar {ram’s horn} exceeding loud, so that all the people that were in the camp trembled.