with the Ammonites - Fairbairn explains and translates, “upon the children of Ammon” (elliptically for, “I will open Moab to the men of the east, who, having overrun the children of Ammon, shall then fall on Moab”). Maurer, as English Version, “with the Ammonites,” that is, Moab, “together with the land of Ammon,” is to be thrown “open to the men of the east,” to enter and take possession (Jer 49:1-39).