Only be sure that you do not eat the blood, for the blood is the life, and you shall not eat the life with the flesh. -Deut 12:23
In Deuteronomy 12 Moses reiterates some of the instructions to the Hebrews regarding where and how animals may be prepared and eaten. If they were killing the animal to be prepared as food then the blood was to be poured on the ground. If the animal was being offered on the altar then the flesh could be eaten but the blood was to spilled on the altar. Why? Because the life of an animal is in it’s blood.
Indeed, under the law almost everything is purified with blood, and without the shedding of blood there is no forgiveness of sins. -Heb 9:22
As we approach the Passion week it’s appropriate to think about some of those Old Testament lessons. Everything about the sacrificial system help us understand what Jesus did on the cross and does now seated at the right hand of God. The design of the tabernacle, the office of the High Priest, the altar, the sacrifice and the blood of atonement all speak to the ministry of Jesus. Read Hebrews 9 to tie it all together.
But when Christ appeared as a high priest of the good things that have come, then through the greater and more perfect tent (not made with hands, that is, not of this creation) he entered once for all into the holy places, not by means of the blood of goats and calves but by means of his own blood, thus securing an eternal redemption. For if the blood of goats and bulls, and the sprinkling of defiled persons with the ashes of a heifer, sanctify for the purification of the flesh, how much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God,purify our conscience from dead works to serve the living God. -Hebrews 9:11-14