Midrash su Levitico 3:4

(Lev. 9:2:) THEN HE SAID UNTO AARON; TAKE A BULLOCK < OF THE HERD FOR A SIN OFFERING >. Why was it not told him < to take > a bull instead of a bullock?¹⁴Tanh., Lev. 3:4. He said to him: Because through the bullock (of Exod. 32) the priesthood was shaken in your hand, through a bullock it is being established in your hand. And not only that, but lest Israel say there are sins < clinging > to them from the deed of the bullock, for that reason he said they should offer a bullock < for a sin offering >. Thus it is stated (in Lev. 9:3): AND YOU SHALL SPEAK UNTO THE CHILDREN OF ISRAEL, SAYING: TAKE A MALE GOAT FOR A SIN OFFERING AND A BULLOCK…. < These things were said > so that they would know that they had been forgiven for the deed of the calf. The Holy One said to them: In this world they have been forgiven through offerings, but in the world to come I will wipe away their sins without an offering. It is so stated (in Is. 43:25): I, EVEN I, WILL PARDON¹⁵mohel; cf. the Masoretic Text which reads moheh (“wipe away.” YOUR TRANSGRESSIONS FOR MY OWN SAKE AND WILL NOT REMEMBER YOUR SINS.

7) (Vayikra 3:4): "And the two kidneys": not an animal with one kidney and not an animal with three kidneys, (this being considered a blemish). (Vayikra 3:4): "and the fat which is upon them": not the flesh which is upon them, (this being permitted to be eaten). (Vayikra 3:4): "which is on the loins": This is the fat between the loin sinews. These are the words of R. Yossi Haglili. R. Akiva says: to include the fat on the coccyx. R. Yishmael says (in explanation of 6 above): Just as the fat that covers the innards is membranous and easily peeled, so only that fat which is membranous and easily peeled (is included). R. Akiva says: Just as the fat that covers the innards is an even layer, membranous, and easily peeled, so only (that fat) which is an even layer, membranous, and easily peeled (is included).

8) (Vayikra 3:4): "and the lobe with the liver": This is ambiguous. I would not know whether to take part of the liver with the lobe or part of the lobe with the liver. Its being written (Vayikra 9:10): "… and the lobe from the liver of the sin-offering which he caused to smoke upon the altar" indicates that part of the liver is taken with the lobe.

9) ("he shall remove it [yesirenah]. (Vayikra 3:5) And the sons of Aaron shall smoke it"): "yesir" ("he shall remove"): "the lobe," even if the kidneys are not there (after the receiving of the blood); "the kidneys," even if the lobe is not there; "yesirenah" — even one kidney, (which makes the other's absence more conspicuous).