Leviticus 17:11, 12
Leviticus 17:11 NIV
For the life of a creature is in the blood, and I have given it to you to make atonement for yourselves on the altar; it is the blood that makes atonement for one’s life.
Leviticus 17:12 NIV
Therefore I say to the Israelites, “None of you may eat blood, nor may any foreigner residing among you eat blood.”