Leviticus 17:10-14

“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.