Midrash for Numbers 17:3

8 (Numb. 16:6) “Do this; take censers, [Korah and all his company…]”: What was his reason for saying this to them? He said to them, “In the religions of the nations there are many laws,¹⁷NYMWSYN. Gk.: nomoi. and many priests, and they all assemble at one time. Now as for us, we only have one God, one Torah, one justice, one altar, and one high priest; but you two hundred and fifty men are [yet all] seeking high priesthood! I also am willing in this regard.” (Numb. 16:11,) “Therefore you and all your company.” (Numb. 16:6) “Do this, take censers, Korah and all his company”: Here you have a ministry more precious than all the others. It is the incense, the most precious of the sacrifices. But a deadly poison had been put within it, through which Nadab and Abihu were burned. He therefore warned them (in vs. 7, cont.), “then it shall come to pass that the man whom the Lord chooses is the holy one,” Moses said to them, “See, I am telling you that you are not to incur guilt, [only] the one to be chosen from among you shall come out alive, and all [the rest] of you shall perish.” (Numb. 16:7,) “You Levites have gone too far”: See, I have told you a great thing! Were they not fools, in that when he gave them this warning, they took it upon themselves to offer sacrifice? They had sinned against their own lives, as stated (in Numb. 17:3), “The censers of these who have sinned at the cost of their lives.” Now since Korah was a clever man, how did he see fit to commit this folly? It is simply that his eyes misled him. He foresaw a great lineage stemming from himself, [e.g.,] Samuel, who was the equivalent of Moses and Aaron, as stated (in Ps. 99:6), “Moses and Aaron among his priests, and Samuel among those who call His name.” Moreover, the twenty-four [Levitical] shifts would stem from his descendants, all of whom would prophesy by the holy spirit, as stated (in I Chron. 25:5), “All these were sons of Heman.”¹⁸A descendant of Korah. He said, “Is it possible that, when this greatness is going to stem from me, I should perish?” But he did not foresee correctly, since his children would repent, and those [great ones] would stem from them. But Moses did foresee well. [Korah] therefore participated on this assumption, when he heard from the mouth of Moses that they all would perish, but one would escape, as stated (Numb. 16:7) “then it shall come to pass that the man whom the Lord chooses is the holy one.”