Blood of Legal Sacrifices for Purification
Source: TTT
Hebrews 9:13, 19–22
For if the blood of goats and bulls and the ashes of a heifer sprinkled on those who are ceremonially unclean sanctify them so that their bodies are clean, / For when Moses had proclaimed every commandment of the law to all the people, he took the blood of calves and goats, along with water, scarlet wool, and hyssop, and sprinkled the scroll and all the people, / According to the law, in fact, nearly everything must be purified with blood, and without the shedding of blood there is no forgiveness.