Leviticus 17:11-14

17:11 for the life of every living thing is in the blood. So I myself have assigned it to you on the altar to make atonement for your lives, for the blood makes atonement by means of the life. 17:12 Therefore, I have said to the Israelites: No person among you is to eat blood, and no resident foreigner who lives among you is to eat blood.

17:13 “‘Any man from the Israelites or from the foreigners who reside in their midst who hunts a wild animal or a bird that may be eaten must pour out its blood and cover it with soil, 17:14 for the life of all flesh is its blood. So I have said to the Israelites: You must not eat the blood of any living thing because the life of every living thing is its blood – all who eat it will be cut off.