Exodus 24:6-8

ASV(i) 6 And Moses took half of the blood, and put it in basins; and half of the blood he sprinkled on the altar. 7 And he took the book of the covenant, and read in the audience of the people: and they said, All that Jehovah hath spoken will we do, and be obedient. 8 And Moses took the blood, and sprinkled it on the people, and said, Behold the blood of the covenant, which Jehovah hath made with you concerning all these words.