Exodus 24:3-8

3So Moses came and told the people all the words of Adonai as well as all the ordinances. All the people answered with one voice and said, “All the words which Adonai has spoken, we will do.”

4So Moses wrote down all the words of Adonai, then rose up early in the morning, and built an altar below the mountain, along with twelve pillars for the twelve tribes of Israel.

5He then sent out young men of Bnei-Yisrael, who sacrificed burnt offerings and fellowship offerings of oxen to Adonai.

6Then Moses took half of the blood and put it in basins and the other half he poured out against the altar.

7He took the Scroll of the Covenant and read it in the hearing of the people. Again they said, “All that Adonai has spoken, we will do and obey.”

8Then Moses took the blood, sprinkled it on the people, and said, “Behold the blood of the covenant, which Adonai has cut with you, in agreement with all these words.”