But if the Lord brings about something unprecedented, and the ground opens its mouth and swallows them along with all that belongs to them so that they go down alive into Sheol, then you will know that these men have despised the Lord.”

The earth opened its mouth and swallowed them and their households, all Korah’s people, and all their possessions.

Then the Lord opened the donkey’s mouth, and she asked Balaam, “What have I done to you that you have beaten me these three times?”

Balaam said to him, “Look, I have come to you, but can I say anything I want? I must speak only the message God puts in my mouth.”

Then the Lord put a message in Balaam’s mouth and said, “Return to Balak and say what I tell you.”

He answered, “Shouldn’t I say exactly what the Lord puts in my mouth?”

The Lord met with Balaam and put a message in his mouth. Then He said, “Return to Balak and say what I tell you.”

The earth opened its mouth and swallowed them with Korah, when his followers died and the fire consumed 250 men. They serve as a warning sign.