Numbers 16:29-35

29If these men die a natural death, or if they suffer the fate of all men, then the LORD has not sent me. 30But if the LORD brings about something unprecedented, and the earth opens its mouth and swallows them and all that belongs to them so that they go down alive into Sheol, then you will know that these men have treated the LORD with contempt.”

31As soon as Moses had finished saying all this, the ground beneath them split open, 32and the earth opened its mouth and swallowed them and their households—all Korah’s men and all their possessions. 33They went down alive into Sheol with all they owned. The earth closed over them, and they vanished from the assembly.

34At their cries, all the people of Israel who were around them fled, saying, “The earth may swallow us too!” 35And fire came forth from the LORD and consumed the 250 men who were offering the incense.