New Revised Standard Version
For the life of the flesh is in the blood; and I have given it to you for making atonement for your lives on the altar; for, as life, it is the blood that makes atonement.

Contemporary English Version
Life is in the blood, and I have given you the blood of animals to sacrifice in place of your own.

New American Bible
since the life of the flesh is in the blood, and I have given it to you to make atonement on the altar for yourselves, because it is the blood as life that makes atonement.

Douay-Rheims Bible
Because the life of the flesh is in the blood: and I have given it to you, that you may make atonement with it upon the altar for your souls, and the blood may be for an expiation of the soul.

Because the life of the flesh is in the blood: and I have given it to you, that you may make atonement with it upon the altar for your souls, and the blood may be for an expiation of the soul.

3000 years, before the attention of any philosopher was drawn to the subject. That the blood actually possesses a {living principle}, and that the life of the whole body is derived from it, is a doctrine of revelation, and a doctrine which the experiments of the most accurate anatomists have served strongly to confirm. The proper {circulation} of this important fluid through the whole human system was first taught by Solomon in figurative language

Ecclesiastes 12:6 Before the silver cord be broken, and the golden fillet shrink back, and the pitcher be crushed at the fountain, and the wheel be broken upon the cistern,

1628; though some Italian philosophers had the same notion a little before. This accurate anatomist was the first who fully revived the Mosaic notion of the {vitality} of the blood; which was afterwards adopted by the justly celebrated Dr. John Hunter, professor of anatomy, and established by him, by a great variety of strong reasoning and accurate experiments.

Leviticus 17:14 For the life of all flesh is in the blood. Therefore I said to the children of Israel: you shall not eat the blood of any flesh at all, because the life of the flesh is in the blood, and whosoever eateth it, shall be cut off.

I have

Leviticus 8:15 He immolated it: and took the blood, and dipping his finger in it, he touched the horns of the altar round about. Which being expiated, and sanctified, he poured the rest of the blood at the bottom thereof.

Leviticus 16:11,14-19 After these things are duly celebrated, he shall offer the calf: and praying for himself and for his own house, he shall immolate it. . . .

Matthew 20:28 Even as the Son of man is not come to be ministered unto, but to minister and to give his life a redemption for many.

Matthew 26:28 For this is my blood of the new testament, which shall be shed for many unto remission of sins.

Mark 14:24 And he said to them: This is my blood of the new testament, which shall be shed for many.

Romans 3:25 Whom God hath proposed to be a propitiation, through faith in his blood, to the shewing of his justice, for the remission of former sins,

Romans 5:9 Christ died for us. Much more therefore, being now justified by his blood, shall we be saved from wrath through him.

Ephesians 1:7 In whom we have redemption through his blood, the remission of sins, according to the riches of his, grace,

Colossians 1:14,20 In whom we have redemption through his blood, the remission of sins: . . .

Hebrews 9:22 And almost all things, according to the law, are cleansed with blood: and without shedding of blood there is no remission.

Hebrews 13:12 Wherefore Jesus also, that he might sanctify the people by his own blood, suffered without the gate.

1 Peter 1:2 According to the foreknowledge of God the Father, unto the sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ. Grace unto you and peace be multiplied.

1 John 1:7 But if we walk in the light, as he also is in the light, we have fellowship one with another: And the blood of Jesus Christ his Son cleanseth us from all sin.

1 John 2:2 And he is the propitiation for our sins: and not for ours only, but also for those of the whole world.

Revelation 1:5 And from Jesus Christ, who is the faithful witness, the first begotten of the dead and the prince of the kings of the earth, who hath loved us and washed us from our sins in his own blood