Numbers 26:10

and the earth opened its mouth and swallowed them up together with Korah , when that company died , when the fire devoured 250 men , and they became a warning .

The earth opened its mouth and swallowed them along with Korah, whose followers died when the fire devoured the 250 men. And they served as a warning sign.

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.