TSK · Exodus 6:21

The Rebellion of Korah Now Korah son of Izhar, the son of Kohath, the son of Levi, and Dathan and Abiram, the sons of Eliab, and On son of Peleth, who were Reubenites, took men

The earth opened its mouth and swallowed them and Korah at the time that company died, when the fire consumed 250 men. So they became a warning.

son of Tahath, son of Assir, son of Ebiasaph, son of Korah,