Exodus 19:12-14

Darby Translation

¹² And set bounds round about the people, saying, Take heed to yourselves, [not] to go up unto the mountain nor touch the border of it: whatever toucheth the mountain shall certainly be put to death:

¹³ not a hand shall touch it, but it shall certainly be stoned, or shot through; whether it be a beast or a man, it shall not live. When the long drawn note of the trumpet soundeth, they shall come up to the mountain.

¹⁴ And Moses came down from the mountain to the people, and hallowed the people; and they washed their clothes.