David keeps up his military campaigns against Israel's enemies, and gets on a hot winning streak.
He defeats the Philistines, taking the city of Metheg-ammah from them, and defeats the Moabites, leaving those he doesn't execute to pay tribute to him.
Further, David wins a stunning surprise victory against King Hadadezer of Zobah, who was in the middle or restoring a monument to himself, when David's troops swept in and captured tons of horsemen, soldiers, and chariot horses.
The Arameans of Damascus sweep in to try to help Hadadezer, but David annihilates twenty two thousand of them and reduces the rest of them to paying him tribute.
He captures gold shields from Hadadezer's dead soldiers, and steals lots of bronze from different towns, God supporting him all the while.
Dudes with the Same Enemies = Pals
The victory over Hadadezer pleases one of Hadadezer's old rivals, King Toi of Hamath, who sends his son, Joram, to bring silver, gold, and bronze to David.
David dedicates these and all the precious metals he's plundered to God.
Also, he crushes the Edomites, stations garrisons of his own troops in Edom, and makes them pay him tribute—all with God's continued and much appreciated support.
The text then lists David's important officials: Joab is now the head of the army, Zadok and Ahimelech are important priests, as are a good number of David's sons (other less important positions are listed, too).