Hebrews 9:18-20

9:18 So even the first covenant was inaugurated with blood. 9:19 For when Moses had spoken every command to all the people according to the law, he took the blood of calves and goats with water and scarlet wool and hyssop and sprinkled both the book itself and all the people, 9:20 and said, “This is the blood of the covenant that God has commanded you to keep.”