Leviticus 17:11

11 For the life of flesh is its blood, and I have given it to you on the altar to make atonement for your souls; for its blood shall make atonement for the soul.

Leviticus 17:11 In-Context

9 and shall not bring it to the door of the tabernacle of witness to sacrifice it to the Lord, that man shall be destroyed from among his people.
10 And whatever man of the children of Israel, or of the strangers abiding among you, shall eat any blood, I will even set my face against that soul that eats blood, and will destroy it from its people.
11 For the life of flesh is its blood, and I have given it to you on the altar to make atonement for your souls; for its blood shall make atonement for the soul.
12 Therefore I said to the children of Israel, No soul of you shall eat blood, and the stranger that abides among you shall not eat blood.
13 And whatever man of the children of Israel, or of the strangers abiding among you shall take any animal in hunting, beast, or bird, which is eaten, then shall he pour out the blood, and cover it in the dust.

The Brenton translation of the Septuagint is in the public domain.