Numbers 16:6

3 and they assembled themselves together against Moses and against Aaron, and said to them, You take too much on you, seeing all the congregation are holy, everyone of them, and Yahweh is among them: why then lift you up yourselves above the assembly of Yahweh?

4 When Moses heard it, he fell on his face:

5 and he spoke to Korah and to all his company, saying, In the morning Yahweh will show who are his, and who is holy, and will cause him to come near to him: even him whom he shall choose will he cause to come near to him.

6 This do: take you censers, Korah, and all his company;

7 and put fire in them, and put incense on them before Yahweh tomorrow: and it shall be that the man whom Yahweh does choose, he [shall be] holy: you take too much on you, you sons of Levi.

8 Moses said to Korah, Hear now, you sons of Levi:

9 [seems it but] a small thing to you, that the God of Israel has separated you from the congregation of Israel, to bring you near to himself, to do the service of the tent of Yahweh, and to stand before the congregation to minister to them;