Numbers 21:28-32

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.

Woe to thee, Moab! thou art undone, O people of Chemosh: he hath given his sons that escaped, and his daughters, into captivity unto Sihon king of the Amorites.

We have shot at them; Heshbon is perished even unto Dibon, and we have laid them waste even unto Nophah, which reacheth unto Medeba.

Thus Israel dwelt in the land of the Amorites.

And Moses sent to spy out Jaazer, and they took the villages thereof, and drove out the Amorites that were there.