Numbers 26:5-11

Reuben, the firstborn of Israel; the sons of Reuben: of Hanoch, the clan of the Hanochites; of Pallu, the clan of the Palluites; of Hezron, the clan of the Hezronites; of Carmi, the clan of the Carmites. These are the clans of the Reubenites, and those listed were 43,730. And the sons of Pallu: Eliab. The sons of Eliab: Nemuel, Dathan, and Abiram. These are the Dathan and Abiram, chosen from the congregation, who contended against Moses and Aaron in the company of Korah, when they contended against the LORD and the earth opened its mouth and swallowed them up together with Korah, when that company died, when the fire devoured 250 men, and they became a warning. But the sons of Korah did not die.