The One Time Moses Was Wrong and Admitted It

Moses was furious. On the same day Nadav and Avihu died, he discovered that Aaron's surviving sons — Eleazar and Itamar — had not eaten the goat of the sin offering. They had burned it instead. Moses rebuked them publicly: why did you not eat the sin offering in the holy place? (Leviticus 10:17). Then Aaron stepped forward and answered him. And Moses, the Torah says, heard — and it was good in his eyes (Leviticus 10:20). He conceded. The rabbis considered this one of the most remarkable moments in Moses' life.

What the Law Said and Why Moses Was Angry

The rule about sin offerings was clear: certain portions of the sacrifice were to be eaten by the officiating priests in the sacred precinct. Eating the offering was itself a ritual act — part of the atonement process. If the priests did not eat, the atonement was incomplete. Moses had just supervised the entire inauguration ceremony. He knew the law. He had transmitted it. And the goat had been burned, not eaten. His anger was legal, not personal.

Vayikra Rabbah (c. 400–500 CE) describes Moses' anger as genuine halakhic outrage — he believed a law had been violated and that the violation had to be addressed publicly. He was not wrong about the law. He was wrong about whether the law applied in this specific situation.

Aaron's Answer

Aaron did not become defensive. He spoke quietly and directly: today my sons brought their sin offering and their burnt offering before God. And these things have happened to me. If I had eaten the sin offering today, would it have been good in God's eyes? (Leviticus 10:19). The argument was simple. On a day when two of his sons had died in the performance of priestly duties, Aaron was in a state of acute mourning. And a mourner, the halakha holds, may not eat from consecrated sacrifices.

Moses had known the law about sin offerings. He had not applied the intersecting law about mourners. In his anger at seeing the offering burned, he had missed the explanation that made the burning correct. Aaron's calm statement showed him the gap.

Why Moses Conceded

The Babylonian Talmud (compiled c. 500 CE), Tractate Zevachim 101a, records this as an explicit legal ruling: Moses heard Aaron's reasoning and acknowledged it was valid. The text uses a technical term — Moses learned this law from Aaron's argument and accepted it. Not grudgingly. Not with qualifications. He heard it, he recognized it was right, and he stopped.

Legends of the Jews by Louis Ginzberg (published 1909–1938) highlights this moment as uniquely significant in the Torah's portrait of Moses. Moses is described throughout as the greatest prophet who ever lived, the one who saw God "face to face." He received the entire Torah at Sinai. And yet here, on the most legally demanding day in Israelite religious history, he made an error of application — and when it was pointed out to him by his older brother, he simply said: you are right.

What the Rabbis Said About Learning to Be Wrong

Midrash Rabbah on Leviticus draws a deliberate lesson from Moses' concession. If Moses, who received the Torah directly from God, could miss an application of a law in a complex real-world situation, then no human authority — no sage, no judge, no rabbi — should consider themselves immune to legal error. The tradition of talmudic argumentation, where every ruling is challenged and every opinion is subject to revision, traces its moral authority in part to this moment.

The Midrash Tanchuma (c. 9th century CE) emphasizes that Moses' greatness is not diminished by this concession — it is demonstrated by it. The mark of a great teacher is not infallibility but the capacity to hear a better argument and change course. The same Torah that records Moses' incomparable relationship with God records, without embarrassment, the day he was corrected by his brother.

Aaron's Day

It is worth pausing to note what Aaron navigated on this single day: the inauguration of his priesthood, the divine fire consuming his offering, the death of his two oldest sons, his public silence in response to grief, and then a legal dispute with Moses that he won by patient reasoning. The portrait of Aaron in Leviticus 10 is of a man under enormous pressure who does not crack — not emotionally, not legally, not relationally.

The Talmud in Tractate Arakhin 11a records that Aaron was the paradigmatic figure of one who "loves peace and pursues peace" — the phrase the Mishnah uses in Pirkei Avot to describe the ideal person. This day in Leviticus is the proof text. When he had every reason to rage and collapse, he was silent. When he had every reason to defer to Moses, he spoke up. He knew precisely when each was called for. Explore the full tradition of the Tabernacle's inauguration and Aaron's priesthood at jewishmythology.com.