Numbers 26:9-10

BSB(i) 9 and the sons of Eliab were Nemuel, Dathan, and Abiram. It was Dathan and Abiram, chosen by the congregation, who fought against Moses and Aaron with the followers of Korah who rebelled against the LORD. 10 And the earth opened its mouth and swallowed them along with Korah, whose followers died when the fire consumed 250 men. They serve as a warning sign.