And at the stream of the brooks that goeth down to the dwelling of Ar, and lieth upon the border of Moab.
And he smote Moab, and measured them with a line, casting them down to the ground; even with two lines measured he to put to death, and with one full line to keep alive. And so the Moabites became David's servants, and brought gifts.
Then Moab rebelled against Israel after the death of Ahab.