John Gill's Bible Commentary Ver. 5. And the priest shall burn them upon the altar , etc.] Fat taken off of the several parts before mentioned, and the kidneys: which were to be [for] an offering made by fire unto the Lord ; and was acceptable to him, being typical of the offering of Christ, which is a sweet smelling savour, bearing the fire of divine wrath in the room and stead of his people: it [is] the trespass [offering] ; an offering for a trespass committed, to make atonement for it; and this part of it, the burning of the fat, was properly the offering to the Lord, all the rest were the priest’s, as follows.
Matthew Henry Commentary
Verses 1-10 - In the sin-offering and the trespass-offering, the sacrifice wa divided between the altar and the priest; the offerer had no share, a he had in the peace-offerings. The former expressed repentance an 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 tru believer.
Original Hebrew והקטיר6999 אתם853 הכהן3548 המזבחה4196 אשׁה801 ליהוה3068 אשׁם817 הוא׃1931