LXX Num 16:30

ἀλλ' ἢ ἐν φάσματι δείξει Κύριος, καὶ ἀνοίξασα ἡ γῆ τὸ στόμα αὐτῆς καταπίεται αὐτοὺς καὶ τοὺς οἴκους αὐτῶν καὶ τὰς σκηνὰς αὐτῶν καὶ πάντα ὅσα ἐστὶν αὐτοῖς, καὶ καταβήσονται ζῶντες εἰς ᾄδου, καὶ γνώσεσθε ὅτι παρώξυναν οἱ ἄνθρωποι οὗτοι τὸν κύριον.

But 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.”