Hebrews 9:13-14, 19

The blood of goats and bulls and the ashes of a cow are sprinkled on the people who are unclean, and this makes their bodies clean again. How much more is done by the blood of Christ. He offered himself through the eternal Spirit as a perfect sacrifice to God. His blood will make our consciences pure from useless acts so we may serve the living God.

First, Moses told all the people every command in the law. Next he took the blood of calves and mixed it with water. Then he used red wool and a branch of the hyssop plant to sprinkle it on the book of the law and on all the people.