Jeremiah 49:4

Wherefore gloriest thou in the valleys, thy flowing valley, flowing with abundance, with milk and honey, O backsliding daughter? so called because the children of Ammon had denied their descent from Lot and had turned to idolatry, that trusted in her treasures, in her wealth of resources and goods, saying, Who shall come unto me? namely, in a hostile attack. The Ammonites boasted that no enemy could successfully launch a campaign against their land.