Numbers 16:28-33

28And Moses said, Hereby ye shall know that Jehovah has sent me to do all these deeds, for they are not out of my own heart:

29if these men die as all men die, and are visited with the visitation of all men, Jehovah has not sent me;

30but if Jehovah make a new thing, and the ground open its mouth, and swallow them up, and all that they have, and they go down alive into Sheol, then ye shall know that these men have despised Jehovah.

31And it came to pass when he had ended speaking all these words, that the ground clave apart that was under them.

32And the earth opened its mouth, and swallowed them up, and their households, and all the men that belonged to Korah, and all their property.

33And they went down, they and all that they had, alive into Sheol, and the earth covered them; and they perished from among the congregation.