Parallel
Numbers 26:10
Jewish Publication Society 1917 · Berean Standard Bible
and the earth opened her mouth, and swallowed them up together with Korah, when that company died; what time the fire devoured two hundred and fifty men, and they became a sign.
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.