Leviticus 4:11

And the skin of the bullock ,.... Not taken off; for the sin offerings that were burnt were not flayed at all, but were cut in pieces with their skins on them F1 Ib. (Maasch Hakoranot) c. 5. sect. 18. & 7. 2. ; in other burnt offerings the skin was taken off, and was a perquisite of the priest, Leviticus 7:8 but this being an offering for the priest, the skin was burnt with the rest:

and all his flesh, with his head, and with his legs, and his inwards, and his dung ; the burning of these denoted the sufferings of Christ, and these several parts the extent of them, they reaching to all parts of his body as stretched upon the cross; and the dung particularly the reproach of them, he dying the death of the cross, and was made sin and a curse for his people.