Numbers 16:5-7

5and he spoke to Korah and all his company, saying, “Tomorrow morning the Lord will show who is His and who is holy, and will cause him to come near to Him. That one whom He chooses He will cause to come near to Him.

6Do this: Take censers, Korah and all your company;

7put fire in them and put incense in them before the Lord tomorrow, and it shall be that the man whom the Lord chooses is the holy one. You take too much upon yourselves, you sons of Levi!”