Numbers 16:18, 46

And they took every man his censer, and put fire in them, and laid incense thereon, and stood at the door of the tent of meeting with Moses and Aaron.

And Moses said unto Aaron, Take thy censer, and put fire therein from off the altar, and lay incense thereon, and carry it quickly unto the congregation, and make atonement for them: for there is wrath gone out from Jehovah; the plague is begun.