The glory and power of the Living God is overwhelming to the Israelites. Exodus 20:19 records that “the people stayed at a distance and said to Moses, ‘Speak to us yourself, and we will listen. But do not have God speak to us or we will die.’” This is a foreshadowing of Jesus as our mediator. The ancient Hebrews needed Moses to mediate, and 1500 years later, Jesus will be the ultimate Mediator.
The Ten Commandments need additional explanation. Chapters 21-23 go into more detail. To us these laws seem logical, but they were revolutionary in the time of Moses. The laws of the Hebrews that are recorded in these chapters become the backbone of the laws of Western civilization. At the time of Moses, the moral code of all other civilizations was at the whim of the ruler. These laws of Moses are from the hand of God.