Deuteronomy 2:20
(That also was accounted a land of giants: giants dwelt therein in old time; and the Ammonites call them Zamzummims; (That also was accounted a land of giants: giants dwelt therein in old time; and the Ammonites call them Zamzummims;
The people named in the verse as Ammonites were descended from Lot. This identification places the verse within the record of Israel's approach when the command was given not to harass the Ammonites and not to engage them in battle. The reason for that restraint was that their territory had been assigned as a possession to the descendants of Lot.