11 This is the ritual of the sacrifice of the offering of well-being that one may offer to the Lord. 12 If you offer it for thanksgiving, you shall offer with the thank offering unleavened cakes mixed with oil, unleavened wafers spread with oil, and cakes of choice flour well soaked in oil. 13 With your thanksgiving sacrifice of well-being you shall bring your offering with cakes of leavened bread. 14 From this you shall offer one cake from each offering, as a gift to the Lord; it shall belong to the priest who dashes the blood of the offering of well-being. 15 And the flesh of your thanksgiving sacrifice of well-being shall be eaten on the day it is offered; you shall not leave any of it until morning.
Matthew Henry's Commentary on Leviticus 7:11-15
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.