2 Samuel 8:1-2

King James Version

8 And after this it came to pass that David smote the Philistines, and subdued them: and David took Methegammah out of the hand of the Philistines.

² 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.