“It came to pass after this also, that the children of Moab, and the children of Ammon, and with them other beside the Ammonites, came against Jehoshaphat to battle.”
That is, which counterfeited the Ammonites in language and apparel. The Hebrews think that they were the Amalekites, but as may appear by the tenth verse they were the Idumeans of mount Seir.