2 Samuel 8:1-4

In the days that followed, David struck hard at the Philistines—brought them to their knees and took control of the countryside. He also fought and defeated Moab. He chose two-thirds of them randomly and executed them. The other third he spared. So the Moabites fell under David’s rule and were forced to bring tribute. On his way to restore his sovereignty at the River Euphrates, David next defeated Hadadezer son of Rehob the king of Zobah. He captured from him a thousand chariots, seven thousand cavalry, and twenty thousand infantry. He hamstrung all the chariot horses, but saved back a hundred.