Numbers 26:5-11

5The descendants of Reuben, the firstborn son of Israel, were: through Hanok, the Hanokite clan; through Pallu, the Palluite clan;

6through Hezron, the Hezronite clan; through Karmi, the Karmite clan.

7These were the clans of Reuben; those numbered were 43,730. 8The son of Pallu was Eliab, 9and the sons of Eliab were Nemuel, Dathan and Abiram. The same Dathan and Abiram were the community officials who rebelled against Moses and Aaron and were among Korah’s followers when they rebelled against the LORD . 10The earth opened its mouth and swallowed them along with Korah, whose followers died when the fire devoured the 250 men. And they served as a warning sign.

11The line of Korah, however, did not die out.