Amos 1:14

I will kindle afire in the wall of Rabbah -Rabbah, literally, “the great,” called by Moses “Rabbah of the children of Ammon”Deuteronomy 3:11, and by later Greeks, “Rabathammana” , was a strong city with a yet stronger citadel. Ruins still exist, some of which probably date back to these times. The lower city “lay in a valley bordered on both sides by barren hills of flint,” at 12 an hour from its entrance. It lay on a stream, still called by its name Moyet or Nahr Amman, “waters” or “river of Ammon,” which ultimately falls into the Zurka (the Jabbok) .