21 And when any one shall touch any unclean thing, the uncleanness of man, or an unclean beast, or any unclean abomination, and eat of the flesh of the sacrifice of peace-offerings, which pertain unto Jehovah, that soul shall be cut off from his people.
Matthew Henry's Commentary on Leviticus 7:21
Commentary on Leviticus 7:11-27
(Read Leviticus 7:11-27)
As to the peace-offerings, in the expression of their sense of mercy, God left them more at liberty, than in the expression of their sense of sin; that their sacrifices, being free-will offerings, might be the more acceptable, while, by obliging them to bring the sacrifices of atonement, God shows the necessity of the great Propitiation. The main reason why blood was forbidden of old, was because the Lord had appointed blood for an atonement. This use, being figurative, had its end in Christ, who by his death and blood-shedding caused the sacrifices to cease. Therefore this law is not now in force on believers.