Rabbah
 
 Or Rab'bath, great.
  1. "Rabbath of the children of Ammon," the chief city of the
     Ammonites, among the eastern hills, some 20 miles east of the
     Jordan, on the southern of the two streams which united with the
     Jabbok. Here the bedstead of Og was preserved De 3:11 perhaps
     as a trophy of some victory gained by the Ammonites over the
     king of Bashan. After David had subdued all their allies in a
     great war, he sent Joab with a strong force to take their city.
     For two years it held out against its assailants. It was while
     his army was engaged in this protracted siege that David was
     guilty of that deed of shame which left a blot on his character
     and cast a gloom over the rest of his life. At length, having
     taken the "royal city" (or the "city of waters,") 2Sa 12:27
     i.e., the lower city on the river, as distinguished from the
     citadel), Joab sent for David to direct the final assault
     2Sa 11:1 12:26-31 The city was given up to plunder, and the
     people were ruthlessly put to death, and "thus did he with all
     the cities of the children of Ammon." The destruction of Rabbath
     was the last of David's conquests. His kingdom now reached its
     farthest limits 2Sa 8:1-15 1Ch 18:1-15 The capture of this
     city is referred to by Amos Am 1:14 Jeremiah Jer 49:2,3
     and Ezekiel Eze 21:20 25:5
  2. A city in the hill country of Judah Jos 15:60 possibly the ruin
     Rubba, six miles north-east of Beit-Jibrin.