Deuteronomy 2:20-23

20(That also is considered a land of Rephaim. Rephaim used to live there, but the Ammonites call them Zamzummim—

21a great and numerous people, as tall as the Anakim. But Adonai destroyed them from before them, and the Ammonites dispossessed them and settled in their place.

22It was just as Adonai did for the sons of Esau, who dwell in Seir, when He destroyed the Horites before them. They drove them out and settled in their place even to this day.

23As for the Avvim who lived in villages as far as Gaza, the Caphtorim who came from Crete destroyed them and settled in their place.)