Leviticus 17:11-14

for the life of the body is in its blood. I have given you the blood on the altar to purify you, making you right with the LORD. It is the blood, given in exchange for a life, that makes purification possible. That is why I have said to the people of Israel, ‘You must never eat or drink blood—neither you nor the foreigners living among you.’ “And if any native Israelite or foreigner living among you goes hunting and kills an animal or bird that is approved for eating, he must drain its blood and cover it with earth. The life of every creature is in its blood. That is why I have said to the people of Israel, ‘You must never eat or drink blood, for the life of any creature is in its blood.’ So whoever consumes blood will be cut off from the community.