And when they set out from Rephidim and came into the wilderness of Sinai, they encamped in the wilderness; and there Israel encamped before the mountain.
And Moses went up to God, and the LORD called to him out of the mountain, saying, "Thus you shall say to the house of Jacob, and tell the people of Israel:
And the LORD said to Moses, "Lo, I am coming to you in a thick cloud, that the people may hear when I speak with you, and may also believe you for ever." Then Moses told the words of the people to the LORD.
And you shall set bounds for the people round about, saying, `Take heed that you do not go up into the mountain or touch the border of it; whoever touches the mountain shall be put to death;
no hand shall touch him, but he shall be stoned or shot; whether beast or man, he shall not live.' When the trumpet sounds a long blast, they shall come up to the mountain."
On the morning of the third day there were thunders and lightnings, and a thick cloud upon the mountain, and a very loud trumpet blast, so that all the people who were in the camp trembled.
And Mount Sinai was wrapped in smoke, because the LORD descended upon it in fire; and the smoke of it went up like the smoke of a kiln, and the whole mountain quaked greatly.
And Moses said to the LORD, "The people cannot come up to Mount Sinai; for thou thyself didst charge us, saying, `Set bounds about the mountain, and consecrate it.'"
And the LORD said to him, "Go down, and come up bringing Aaron with you; but do not let the priests and the people break through to come up to the LORD, lest he break out against them."