Leviticus 17:11-15

For the life of the flesh is in the blood, and I have given it to you on the altar to make atonement for your souls; for it is the blood by reason of the life that makes atonement.’

Therefore I said to the sons of Israel, ‘No person among you may eat blood, nor may any stranger who resides among you eat blood.’

So when anyone from the sons of Israel, or from the strangers who reside among them, while hunting catches an animal or a bird which may be eaten, he shall pour out its blood and cover it with dirt.

“For as for the life of all flesh, its blood is identified with its life. Therefore I said to the sons of Israel, ‘You are not to eat the blood of any flesh, for the life of all flesh is its blood; whoever eats it shall be cut off.’

And any person who eats an animal which dies or is torn by animals, whether he is a native or a stranger, shall wash his clothes and bathe in water, and remain unclean until evening; then he will become clean.