they put the fat pieces on the breasts, and he burned the fat pieces on the altar,
These being the first offerings that ever were offered by the levitical priesthood, according to the newly-enacted law of sacrifices, the manner of offering them is particularly related, that it might appear how exactly they agreed with the institution. 1.
Commenting on Leviticus 9:8-22
And the breasts and the right shoulder,.... The breasts of the bullock and the ram, and the right shoulders of them both: Aaron waved for a wave offering before the Lord; which was given to him as his part of the peace offerings, after they had been thus waved before the Lord; whereby an acknowledgment was made that he was Lord of all, and had...
Lev 9:15-21 Of the sacrifices of the nation, Aaron presented the sin-offering in the same manner as the first, i.e., the one offered for himself (Lev 9:8.). The blood of this sin-offering, which was presented for the congregation, was not brought into the holy place according to the rule laid down in Lev 7:16., but only applied to the horns of the altar of burnt-offering...
Commenting on Leviticus 9:15-21