Numbers 16:1, 31-33

Now Korah the son of Izhar, the son of Kohath, the son of Levi, with Dathan and Abiram the sons of Eliab, and On the son of Peleth, sons of Reuben, took men

Now it came to pass, as he finished speaking all these words, that the ground split apart under them, and the earth opened its mouth and swallowed them up, with their households and all the men with Korah, with all their goods. So they and all those with them went down alive into the pit; the earth closed over them, and they perished from among the assembly.