Numbers 21:28
For there is a fire gone out of Heshbon, a flame from the city of Sihon: it hath consumed Ar of Moab, and the lords of the high places of Arnon.
Cross-reference
Numbers 21:15 is part of the same poem, describing the Arnon and Ar, providing geographic context for the fire's destruction.
Numbers 32:3 lists Heshbon as a city given to Reuben and Gad, showing the conquered Amorite capital became Israelite possession.
Isaiah 15:1 prophesies the destruction of Ar of Moab, echoing the historical devastation by Sihon in Numbers.
Jeremiah 48:45 directly quotes this verse, applying the same fire-from-Heshbon oracle to Moab's judgment.
Deuteronomy 2:9 shows God gave Ar to Moab, highlighting that the fire in Numbers came from Sihon, not Israel.
Amos 2:2 pronounces fire on Moab itself, directly linking to the same nation judged in the original verse.
In Judges 9:20, the same fire-from-oppressor imagery appears as mutual destruction, echoing the motif of consuming fire from a city.