Numbers 26:9-10

⁹The sons of Eliab: Nemuel, Dathan, and Abiram. These are that Dathan and Abiram who were called by the congregation, who rebelled against Moses and against Aaron in the company of Korah when they rebelled against the LORD;

¹⁰and the earth opened its mouth, and swallowed them up together with Korah when that company died; at the time the fire devoured two hundred fifty men, and they became a sign.