Leviticus 10:16-20 - The Problem Of The Uneaten Sin Offering
16 And Moses sought for the goat that was the sin offering, and see, it was burnt. And he was angry with Eleazar and Ithamar the sons of Aaron, which were left alive, saying, 17 "Wherefore have ye not eaten the sin offering in the holy place, seeing it is most holy: and forasmuch as it is given you to bear the sin of the people, and make agreement for them before the LORD? 18 Behold, the blood of it was not brought in within the holy place, therefore should ye have eaten it in the holy place as I commanded."
19 And Aaron said unto Moses, "Behold, this day have they offered their sin offering and their burnt offering before the LORD, and it is chanced me after this manner. If I should eat of the sin offering today, would the LORD be content withal?" 20 And when Moses heard that, he was content.