2 Samuel 8:1-2

New Century Version

David Wins Many Wars

8 Later, David defeated the Philistines, conquered them, and took the city of Metheg Ammah.

² He also defeated the people of Moab. He made them lie on the ground, and then he used a rope to measure them. Those who were measured within two rope lengths were killed, but those who were within the next rope length were allowed to live. So the people of Moab became servants of David and gave him the payment he demanded.