Hebrews 9:10

9:10 They served only for matters of food and drink and various washings; they are external regulations imposed until the new order came.

Hebrews 9:19

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,