Leviticus 17:8-16

“Say to them: Anyone from the house of Israel or from the aliens  who reside among them who offers a burnt offering or a sacrifice but does not bring it to the entrance to the tent of meeting to sacrifice it to the LORD, that person is to be cut off from his people. “Anyone from the house of Israel or from the aliens who reside among them who eats any blood,  I will turn  against that person who eats blood and cut him off from his people. For the life of a creature is in the blood, and I have appointed it to you to make atonement on the altar for  your lives, since it is the lifeblood that makes atonement.  Therefore I say to the Israelites: None of you and no alien who resides among you may eat blood. “Any Israelite or alien residing among them, who hunts  down a wild animal or bird that may be eaten must drain its blood  and cover it with dirt. Since the life of every creature is its blood, I have told the Israelites: You are not to eat the blood of any creature,  because the life of every creature is its blood; whoever eats it must be cut off. “Every person, whether the native or the resident alien,  who eats an animal that died a natural death or was mauled by wild beasts  is to wash his clothes and bathe with water, and he will remain unclean until evening; then he will be clean. But if he does not wash his clothes and bathe himself, he will bear his iniquity.”