Numbers 16:1

1 Now Korah, the son of Izhar, the son of Kohath, the son of Levi, with Dathan and Abiram, the sons of Eliab, and On, the son of Pallu, the son of Reuben, made themselves ready,

2 And came before Moses, with certain of the children of Israel, two hundred and fifty chiefs of the people, men of good name who had a place in the meeting of the people.

3 They came together against Moses and against Aaron, and said to them, You take overmuch on yourselves, seeing that all the people are holy, every one of them, and the Lord is among them; why then have you put yourselves in authority over the people of the Lord?

4 And Moses, hearing this, went down on his face;

5 And he said to Korah and his band, In the morning the Lord will make clear who are his, and who is holy, and who may come near him: the man of his selection will be caused to come near him.

6 So do this: let Korah and all his band take vessels for burning perfumes;

7 And put spices on the fire in them before the Lord tomorrow; then the man marked out by the Lord will be holy: you take overmuch on yourselves, you sons of Levi.