Korach's Mockery of Aaron and the Widow's Ewe

"And Korach assembled against them" (Numbers 16:19). They said about Korach that he was a great scoffer. He began to say to the whole congregation: Do you not know what Aaron his brother did to you at the command of Moses? See, there was a certain widow among our neighbors who had a single ewe, and she came to shear it. Aaron came and said to her: Give the first of the fleece. She arose and gave it to him. When the ewe gave birth to a male, Aaron came and said to her: The firstborn is mine. She immediately gave it to him. The woman said: Since it is so, that I cannot be saved, I will slaughter it, and Aaron will have no portion in it. She arose and slaughtered it. Immediately Aaron came and said to her: Give me the foreleg and the cheeks and the maw. She said: I cannot be saved from your hand; behold, let whoever would benefit from it be under the ban (ḥerem). Aaron said to her: From now on it is wholly mine, as it is written, "Everything devoted in Israel shall be yours" (Numbers 18:14), and he took the whole of it. And the poor woman was left empty-handed, having derived no benefit from it at all. Thus do they expound for themselves to take the wealth of Israel, which the Holy One, blessed be He, did not command them.