Deuteronomy 2:16-20

16“So it came about when all the men of war had finally died from among the people,

17that the Lord spoke to me, saying,

18‘Today you are to pass through Ar, the border of Moab.

19When you come opposite the territory of the sons of Ammon, do not harass them nor provoke them, for I will not give you any of the land of the sons of Ammon as a possession, because I have given it to the sons of Lot as a possession.’

20(It is also regarded as the land of the Rephaim [of giant stature], for Rephaim used to live there, but the Ammonites call them Zamzummin,