Hebrews 9:19

19 It was like this. Moses read God's laws aloud to all Israel's people. He told them every rule that God had given them. After that, Moses killed some young cows and goats. He took some of their blood and he mixed it with water. He threw some of the blood to drop onto the book of God's laws. He also caused some to drop onto all the people. He used red sheep's hair and some small branches of a plant called hyssop to throw the blood and water.