Exodus 24:6

⁴And Moses wrote all the words of the Lord; and Moses rose up early in the morning, and built an altar under the mountain, and set up twelve stones for the twelve tribes of Israel.

⁵And he sent forth the young men of the children of Israel, and they offered whole burnt offerings, and they sacrificed young calves as a peace offering to God.

— Exodus 24:6 —

⁷And he took the book of the covenant and read it in the ears of the people, and they said, All things whatsoever the Lord has spoken we will do and hearken therein.

⁸And Moses took the blood and sprinkled it upon the people, and said, Behold the blood of the covenant, which the Lord has made with you concerning all these words.