Commento su Levitico 10:18

'הן לא הובא וגו‎ BEHOLD [THE BLOOD OF IT] WAS NOT BROUGHT [IN WITHIN THE HOLY PLACE] — for if it had been brought,then indeed was it your duty to burn it, as it is said (Leviticus 6:23) “Any sin-offering whereof any of the blood is brought [into the appointed tent, … shall not be eaten; it shall be burnt in the fire]” (Zevachim 101a; Pesachim 82a);

הן לא הובא את דמה אל הקדש פנימה, into the sanctuary; all sin offers whose blood is destined for the golden altar or dividing curtain must be burned as has been made clear in Leviticus 6,23. None of it must be eaten by the priests. However, the sin offering under discussion is one whose blood was sprinkled on the copper altar in the courtyard of the Tabernacle.

You should have. It does not mean they should eat it now, as the expression implies, since it was already burnt.

אכל תאכלו אתה YE SHOULD INDEED HAVE EATEN IT although you were Onanim,

Regarding the meal-offering. This is because it [the goat of Rosh Chodesh] is holy of holies and should be eaten in the sacred place like it [the meal-offering]. However, we should not say that “as I have commanded you” refers to the breast that is the wave-offering and the thigh that is the separated portion, regarding which Moshe instructed them to eat as well (v. 14). This is because they are sacrifices of lesser sanctity, and they are eaten in a pure place, thus, we cannot derive [laws pertaining to] sacrifices that are holy of holies [which must be eaten in the sacred place] from those of lesser sanctity. It appears to me that the answer is: [Moshe could not be referring to the breast and the thigh] because Hashem did not command explicitly regarding eating the breast and the thigh, but rather only regarding the meal-offering, as Scripture states (v. 12): “Take the meal-offering ... and eat it [as] matzos.” Moshe, however, added them by his own reasoning by comparing the eating of the breast and thigh to the eating of the meal-offering (Nachalas Yaakov).

כאשר צויתי AS I COMMANDED you in the case of the meal-offering (vv. 12, 13).