Numbers 16:15-19

Then Moses became very angry and said to the Lord, “Pay no attention to their offering! I have not taken a single donkey from them, nor have I done harm to any of them.”

Moses said to Korah, “You and all your group be present before the Lord tomorrow, you and they along with Aaron.

And each of you take his censer and put incense on it, and each of you bring his censer before the Lord, 250 censers; also you and Aaron shall each bring his censer.”

So they took, each one his own censer, and put fire on it, and placed incense on it; and they stood at the entrance of the tent of meeting, with Moses and Aaron.

So Korah assembled all the congregation against them at the entrance of the tent of meeting. And the glory of the Lord appeared to all the congregation.