The sons of Izhar were Korah, Nepheg, and Zichri.
the son of Tahath, the son of Assir, the son of Ebiasaph, the son of Korah,
Now Korah son of Izhar, the son of Kohath son of Levi, along with some Reubenites—Dathan and Abiram, sons of Eliab, and
And the earth opened its mouth and swallowed them along with Korah, whose followers died when the fire consumed 250 men.
and the earth opened its mouth and swallowed them and their households—all Korah’s men and all their possessions.
The sons of Korah were Assir, Elkanah, and Abiasaph. These were the clans of the Korahites.