11 And this is the law for the peace-offerings offered to the Lord. 12 If any man gives his offering as a praise-offering, then let him give with the offering, unleavened cakes mixed with oil and thin unleavened cakes covered with oil and cakes of the best meal well mixed with oil. 13 With his peace-offering let him give cakes of leavened bread, as a praise-offering. 14 And let him give one out of every offering to be lifted up before the Lord; that it may be for the priest who puts the blood of the peace-offering on the altar. 15 And the flesh of the praise-offering is to be taken as food on the day when it is offered; no part of it may be kept till the morning. 16 But if his offering is made because of an oath or given freely, it may be taken as food on the day when it is offered; and the rest may be used up on the day after: 17 But if any of the flesh of the offering is still unused on the third day, it is to be burned with fire.
Matthew Henry's Commentary on Leviticus 7:11-17
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.