Deuteronomy 12:20-28 - The Sanctity Of Blood
20 When the LORD thy God shall enlarge thy border, as he hath promised thee, and thou shalt say, I will eat flesh, because thy soul longeth to eat flesh; thou mayest eat flesh, whatever thy soul desireth. 21 If the place which the LORD thy God hath chosen to put his name there, shall be too far from thee, then thou shalt kill of thy herd and of thy flock, which the LORD hath given thee, as I have commanded thee, and thou shalt eat in thy gates whatever thy soul desireth. 22 Even as the roebuck and the hart is eaten, so thou shalt eat them: the unclean and the clean shall eat of them alike. 23 Only be sure that thou eat not the blood: for the blood is the life; and thou mayest not eat the life with the flesh. 24 Thou shalt not eat it: thou shalt pour it upon the earth as water. 25 Thou shalt not eat it; that it may be well with thee, and with thy children after thee, when thou shalt do that which is right in the sight of the LORD.
26 Only thy holy things which thou hast, and thy vows, thou shalt take, and go to the place which the LORD shall choose: 27 And thou shalt offer thy burnt-offerings, the flesh and the blood, upon the altar of the LORD thy God: and the blood of thy sacrifices shall be poured out upon the altar of the LORD thy God, and thou shalt eat the flesh. 28 Observe and hear all these words which I command thee, that it may be well with thee, and with thy children after thee for ever, when thou doest that which is good and right in the sight of the LORD thy God.