They, and all that belonged to them, went down alive into the pit, and the earth closed upon them: and they perished from among the congregation.
All Commentaries on Numbers 16:33 Go To Numbers 16
Gregory The Dialogist
AD 604
It is evident that those who are alive know and feel what is done to them, but the dead feel nothing. People would be dead in going down to hell if they did evil out of ignorance; but if they have knowledge of evil and yet commit it, they go down alive— wretched and conscious—to the hell of iniquity.