Deuteronomy 2:16-20

16So it was that after all the military men had been eliminated from the community,

17the Lord said to me,

18“Today you are going to cross the border of Moab, that is, of Ar.

19But when you come close to the Ammonites, do not harass or provoke them because I am not giving you any of the Ammonites’ land as your possession; I have already given it to Lot’s descendants as their possession.

20(That also is considered to be a land of the Rephaites. The Rephaites lived there originally; the Ammonites call them Zamzummites.