Much like the Israelites, I want to hurry the time. Moses gave them a sample of the law, including the Ten Commandments. Those were the basics, but the Ten Commandments had yet to be written in stone. God gave them the commandments in chapter 20 but didn't give them the stone writings until many chapters later. Moses brought the elders and representatives of the tribes up to the mountain. While there, they presented sacrifices and were sprinkled with blood to enter a covenant with God, agreeing to obey Him. After that, he allowed them to see him, yet they saw only the fabulous Safire stone He was standing on. The impression must have been incredible. Moses and Joshua went up the mountain, where Moses met with God for forty days and forty nights.
The critical point is that we must agree to obey God. Our Holy sacrifice was Jesus, and we are in a covenant with him and are completely washed in His blood, much like Israel was when Moses sprinkled them with blood for their covenant with God. We are chosen like Israel but must agree to be obedient to Jesus. When we realize how lackadaisical we are about salvation, we understand why Paul said in Romans 7:24, "O wretched man that I am! who shall deliver me from the body of this death?" It's a shame we don't take what Jesus did for us more seriously. We need to spend more time contemplating his sacrifice and being more thankful.
And Moses took half of the blood, and put it in basons; and half of the blood he sprinkled on the altar. And he took the book of the covenant, and read in the audience of the people: and they said, All that the LORD hath said will we do, and be obedient. Exodus 24:6-7