First reading
On the third new moon after the Israelites had gone out of the land of Egypt, on that very day, they came into the wilderness of Sinai. They had journeyed from Rephidim, entered the wilderness of Sinai, and camped in the wilderness; Israel camped there in front of the mountain.
Then the Lord said to Moses, “I am going to come to you in a dense cloud, in order that the people may hear when I speak with you and so trust you ever after.” When Moses had told the words of the people to the Lord, the Lord said to Moses: “Go to the people and consecrate them today and tomorrow. Have them wash their clothes and prepare for the third day, because on the third day the Lord will come down upon Mount Sinai in the sight of all the people.”
On the morning of the third day there was thunder and lightning, as well as a thick cloud on the mountain, and a blast of a trumpet so loud that all the people who were in the camp trembled. Moses brought the people out of the camp to meet God. They took their stand at the foot of the mountain.
Now Mount Sinai was wrapped in smoke, because the Lord had descended upon it in fire; the smoke went up like the smoke of a kiln, while the whole mountain shook violently. As the blast of the trumpet grew louder and louder, Moses would speak and God would answer him in thunder. When the Lord descended upon Mount Sinai, to the top of the mountain, the Lord summoned Moses to the top of the mountain.