Jeremiah 48:45

They that fled stood under the shadow of Heshbon because of the force: but a fire shall come forth out of Heshbon, and a flame from the midst of Sihon, and shall devour the corner of Moab, and the crown of the head of the tumultuous ones.

Cross-reference

Numbers 21:28 is the original fire-from-Heshbon song quoted here, linking Moab's judgment to the Amorite conquest.

Numbers 21:25 records Israel's capture of Heshbon, the city named here as a place of refuge for Moab.

Amos 2:2 also pronounces fire on Moab, reinforcing the theme of divine judgment against the nation.