The rump - See Clarke's note on Leviticus 3:9, where the principal subjects in this chapter are explained, being nearly the same in both.

And he shall offer of it all the fat thereof,.... To the Lord, that being claimed by him, as in the peace offerings of the herd, and of the flock, whether a bullock or cow, a lamb or a goat, Leviticus 3:3, &c. and in the sin offering of the bullock, Leviticus 1:8,

and the rump, or tail, which of sheep and rams, for the trespass offering, was very large and fat in those countries; See Gill on Exodus 29:22, Leviticus 3:9,

and the fat that covereth the inwards; called the "omentum".

The fat portions only were to be burned upon the altar, viz., the same as in the sin and peace-offerings (see Leviticus 4:8 and Leviticus 3:9); but the flesh was to be eaten by the priests, as in the sin-offering (Leviticus 6:22), inasmuch as there was the same law in this respect for both the sin-offering and trespass-offering; and these parts of the sacrificial service must therefore have had the same meaning, every trespass being a sin (see Leviticus 6:26). - Certain analogous instructions respecting the burnt-offering and meat-offering are appended in Leviticus 7:8-10 by way of supplement, as they ought properly to have been given in ch. 6, in the laws relating to the sacrifices in question.

And {c} he shall offer of it all the fat thereof; the rump, and the fat that covereth the inwards,

(c) the high priest.

7:1-10 In the sin-offering and the trespass-offering, the sacrifice was divided between the altar and the priest; the offerer had no share, as he had in the peace-offerings. The former expressed repentance and sorrow for sin, therefore it was more proper to fast than feast; the peace-offerings denoted communion with a reconciled God in Christ, the joy and gratitude of a pardoned sinner, and the privileges of a true believer.