Jeremiah 49:2

Rabbah of the Ammonites. — More fully, of the children of Ammon. — Rabbah, or Rabbath, the “city of waters” (the word signifies “Great,” and the city was, as it were, the Megalopolis of Ammon), was the capital, and this was its full and formal title (Deuteronomy 3:11; 2 Samuel 11:1; 2 Samuel 12:26). It had been captured by Joab after the siege made memorable by the death of Uriah the Hittite. Jeremiah now predicts its destruction as Amos (Jeremiah 50:14) had done before him. Israel shall then re-enter on its occupation. Its site is now marked by ruins of a stately temple and theatres of the Syrian period (Tristram, Land of Israel, p. 540).