10 Then the Lord told Moses, "Go down and prepare the people for my arrival. Consecrate them today and tomorrow, and have them wash their clothing. 11 Be sure they are ready on the third day, for on that day the Lord will come down on Mount Sinai as all the people watch. 12 Mark off a boundary all around the mountain. Warn the people, 'Be careful! Do not go up on the mountain or even touch its boundaries. Anyone who touches the mountain will certainly be put to death. 13 No hand may touch the person or animal that crosses the boundary; instead, stone them or shoot them with arrows. They must be put to death.' However, when the ram's horn sounds a long blast, then the people may go up on the mountain. " 14 So Moses went down to the people. He consecrated them for worship, and they washed their clothes. 15 He told them, "Get ready for the third day, and until then abstain from having sexual intercourse."

16 On the morning of the third day, thunder roared and lightning flashed, and a dense cloud came down on the mountain. There was a long, loud blast from a ram's horn, and all the people trembled. 17 Moses led them out from the camp to meet with God, and they stood at the foot of the mountain. 18 All of Mount Sinai was covered with smoke because the Lord had descended on it in the form of fire. The smoke billowed into the sky like smoke from a brick kiln, and the whole mountain shook violently. 19 As the blast of the ram's horn grew louder and louder, Moses spoke, and God thundered his reply. 20 The Lord came down on the top of Mount Sinai and called Moses to the top of the mountain. So Moses climbed the mountain. 21 Then the Lord told Moses, "Go back down and warn the people not to break through the boundaries to see the Lord, or they will die. 22 Even the priests who regularly come near to the Lord must purify themselves so that the Lord does not break out and destroy them." 23 "But Lord," Moses protested, "the people cannot come up to Mount Sinai. You already warned us. You told me, 'Mark off a boundary all around the mountain to set it apart as holy.'" 24 But the Lord said, "Go down and bring Aaron back up with you. In the meantime, do not let the priests or the people break through to approach the Lord, or he will break out and destroy them." 25 So Moses went down to the people and told them what the Lord had said.

Matthew Henry's Commentary on Exodus 19:10-25

Commentary on Exodus 19:9-15

(Read Exodus 19:9-15)

The solemn manner in which the law was delivered, was to impress the people with a right sense of the Divine majesty. Also to convince them of their own guilt, and to show that they could not stand in judgment before God by their own obedience. In the law, the sinner discovers what he ought to be, what he is, and what he wants. There he learns the nature, necessity, and glory of redemption, and of being made holy. Having been taught to flee to Christ, and to love him, the law is the rule of his obedience and faith.

Commentary on Exodus 19:16-25

(Read Exodus 19:16-25)

Never was there such a sermon preached, before or since, as this which was preached to the church in the wilderness. It might be supposed that the terrors would have checked presumption and curiosity in the people; but the hard heart of an unawakened sinner can trifle with the most terrible threatenings and judgments. In drawing near to God, we must never forget his holiness and greatness, nor our own meanness and pollution. We cannot stand in judgment before him according to his righteous law. The convinced transgressor asks, What must I do to be saved? and he hears the voice, Believe in the Lord Jesus Christ, and thou shalt be saved. The Holy Ghost, who made the law to convince of sin, now takes of the things of Christ, and shows them to us. In the gospel we read, Christ hath redeemed us from the curse of the law, being made a curse for us. We have redemption through his blood, even the forgiveness of sins. Through him we are justified from all things, from which we could not be justified by the law of Moses. But the Divine law is binding as a rule of life. The Son of God came down from heaven, and suffered poverty, shame, agony, and death, not only to redeem us from its curse, but to bind us more closely to keep its commands.