Leviticus 17:10-12

10And every one of the house of Israel, or of the strangers who sojourn among them, that eateth any manner of blood, — I will set my face against the soul that hath eaten blood, and will cut him off from among his people;

11for the soul of the flesh is in the blood; and I have given it to you upon the altar to make atonement for your souls, for it is the blood that maketh atonement for the soul.

12Therefore have I said unto the children of Israel, No soul of you shall eat blood, neither shall the stranger who sojourneth among you eat blood.