Deuteronomy 2:16-20

16And it came to pass when all the men of war were consumed, having died off from among the people,

17that Jehovah spoke to me, saying,

18Thou art to pass this day over the border of Moab, [which is] Ar,

19and come near over against the children of Ammon; thou shalt not distress them nor attack them; for I will not give thee of the land of the children of Ammon a possession; for unto the children of Lot have I given it as a possession.

20(That also is reckoned a land of giants: giants dwelt therein in time past, and the Ammonites call them Zamzummim;