Deuteronomy 2:20, 21
Deuteronomy 2:20 NIV
(That too was considered a land of the Rephaites, who used to live there; but the Ammonites called them Zamzummites.
Deuteronomy 2:21 NIV
They were a people strong and numerous, and as tall as the Anakites. The LORD destroyed them from before the Ammonites, who drove them out and settled in their place.