Numbers 16:27-31
27 So they moved away from the tents of Korah, Dathan and Abiram. Dathan and Abiram had come out and were standing with their wives, children and little ones at the entrances to their tents.
28 Then Moses said, “This is how you will know that the Lord has sent me to do all these things and that it was not my idea:
29 If these men die a natural death and experience only what usually happens to men, then the Lord has not sent me.
30 But if the Lord brings about something totally new, and the earth opens its mouth and swallows them, with everything that belongs to them, and they go down alive into the grave, then you will know that these men have treated the Lord with contempt.”
31 As soon as he finished saying all this, the ground under them split apart