Exodus 19:12-19

12And 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:

13not 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.

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

15And he said to the people, Be ready for the third day; do not come near [your] wives.

16And it came to pass on the third day, when it was morning, that there were thunders and lightnings and a heavy cloud on the mountain, and the sound of the trumpet exceeding loud; and the whole people that was in the camp trembled.

17And Moses brought the people out of the camp to meet with 1God; and they stood at the foot of the mountain.

18And the whole of mount Sinai smoked, because Jehovah descended on it in fire; and its smoke ascended as the smoke of a furnace; and the whole mountain shook greatly.

19And the sound of the trumpet increased and became exceeding loud; Moses spoke, and 2God answered him by a voice.