2 Samuel 8:1-3

Now it happened afterward that David defeated the Philistines and subdued them; and David took control of the chief city from the hand of the Philistines.

And he defeated Moab, and measured them with the line, making them lie down on the ground; and he measured two lines to put to death, and a full line to keep alive. And the Moabites became servants to David, bringing tribute.

Then David defeated Hadadezer, the son of Rehob king of Zobah, as he went to restore his power at the Euphrates River.