Exodus 24:5

Moses alone shall come near to the LORD, but they shall not come near. The people shall not go up with him.”

Moses came and told the people all the LORD’s words, and all the ordinances; and all the people answered with one voice, and said, “All the words which the LORD has spoken will we do.”

Moses wrote all the LORD’s words, then rose up early in the morning and built an altar at the base of the mountain, with twelve pillars for the twelve tribes of Israel.

Moses took half of the blood and put it in basins, and half of the blood he sprinkled on the altar.

He took the book of the covenant and read it in the hearing of the people, and they said, “We will do all that the LORD has said, and be obedient.”

Moses took the blood, and sprinkled it on the people, and said, “Look, this is the blood of the covenant, which the LORD has made with you concerning all these words.”