7:24 He speaks still of the same kinds of beasts, and shews that this prohibition reaches not only to the fat of those beasts which were offered to God, but also of those that died, or were killed at home. And if this seems a superfluous prohibition, since the lean as well as the fat of such beasts were forbidden, Lev 22:8, it must be noted, that prohibition reached only to the priests, Lev 7:4.
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.