Numbers 16:5-7

Then he said to Korah and his followers, “Tomorrow morning the LORD will show us who belongs to him and who is holy. The LORD will allow only those whom he selects to enter his own presence. Korah, you and all your followers must prepare your incense burners. Light fires in them tomorrow, and burn incense before the LORD. Then we will see whom the LORD chooses as his holy one. You Levites are the ones who have gone too far!”