Korah, son of Izhar, of the Kohathite family of the Levites, joins Dathan and Abiram, sons of Eliab, and On, of the tribe of Reuben, with 250 leaders of the congregation. They confront Moses and Aaron: the whole congregation is holy, they say, and the Lord is in its midst, so why do Moses and Aaron exalt themselves? Moses falls on his face and proposes a test: in the morning the Lord will show whom he has chosen, and Korah and his men are to bring censers with fire and incense. Moses reminds the Levites that they already have great honor and should not seek the priesthood as well. Dathan and Abiram refuse to appear and accuse him of bringing them out of a land flowing with milk and honey to kill them in the wilderness.
The next day Korah gathers the congregation at the entrance of the tent, and the glory of the Lord appears. The Lord proposes to consume the congregation, but Moses and Aaron fall on their faces and intercede. Moses tells the people to move away from the tents of the rebels and declares that if the earth opens its mouth, they will know these men have despised the Lord. The earth opens, swallows the rebels with their households and closes over them, and fire consumes the 250 men who were offering incense. Eleazar has their censers hammered into plating to cover the altar, as a reminder that only the descendants of Aaron may offer incense.
The day after, the congregation accuses Moses and Aaron of killing the Lord's people, and a plague begins. Aaron takes his censer with fire and incense, runs to the congregation and makes atonement, standing between the dead and the living, and the plague stops. 14,700 die, besides those who died in the affair of Korah.