Numbers 16:33 is the direct fulfillment: they go down alive into Sheol exactly as Moses predicted here.

Numbers 16:32 describes the earth opening its mouth and swallowing them—the immediate enactment of the sign promised here.

Psalm 55:15 alludes to this event, praying 'let them go down to Sheol alive'—a clear verbal echo of the judgment.

Jeremiah 31:22 uses the exact phrase 'create a new thing' (bara chadashah), but for restoration, not judgment—a strong linguistic parallel.

Proverbs 1:12 uses identical language: 'swallow them alive like Sheol' — directly echoing the earth swallowing Korah's rebels.

Isaiah 5:14 personifies Sheol opening its mouth wide — same image as the earth opening to swallow the rebellious.

Isaiah 43:19 echoes the phrase 'something new' but in a redemption context, contrasting with the judgment here.