Leviticus 17

Leviticus 17:3

Richard Challoner: If he kill: That is, in order to sacrifice. The law of God forbids sacrifices to be offered in any other place but at the tabernacle or temple of the Lord; to signify that no sacrifice would be acceptable to God, out of his true temple, the one holy, catholic, apostolic church.

Leviticus 17:10

Richard Challoner: Eat blood: To eat blood was forbidden in the law; partly, because God reserved it to himself, to be offered in sacrifices on the altar, as to the Lord of life and death; and as a figure of the blood of Christ; and partly, to give men a horror of shedding blood. Gen. 9. 4, 5, 6.

Leviticus 17:11

John Chrysostom: In the case of the human person: first its body is created from the dust, and afterward the power of life is given to it, and this is the being of the soul. Accordingly Moses said about the beasts, “Its blood is its life.” But in the case of the human person its being is incorporeal and immortal and has a great superiority over the body, to the same extent as incorporeal form surpasses the corporeal. — HOMILIES ON Genesis 13:10