Deuteronomy 2:20-23

20(That too was regarded as the land of the Rephaim, who used to live there, though the Ammonites called them Zamzummites. 21They were a people great and many, as tall as the Anakites. But the LORD destroyed them from before the Ammonites, who drove them out and settled in their place, 22just as He had done for the descendants of Esau who lived in Seir, when He destroyed the Horites from before them. They drove them out and have lived in their place to this day. 23And the Avvim, who lived in villages as far as Gaza, were destroyed by the Caphtorites, who came out of Caphtor1 and settled in their place.)