2 Samuel 8:2; 2 Samuel 8:7-8

2 David also defeated the Moabites. He made them lie down on the ground and measured them off with a length of cord. Every two lengths of them were put to death, and the third length was allowed to live. So the Moabites became subject to David and brought tribute.
7 David took the gold shields that belonged to the officers of Hadadezer and brought them to Jerusalem. 8 From Tebah and Berothai, towns that belonged to Hadadezer, King David took a great quantity of bronze.