2 Samuel 10:6-8

ISV(i) 6 When the Ammonites realized that they had created quite a stink with David, they hired 20,000 Aramean mercenaries from Beth-rehob and Zobah, along with the king of Maacah and 1,000 men, and 12,000 men from Tob. 7 In response, David sent out Joab and his entire army of elite soldiers. 8 The Ammonites went out in battle formation at the entrance to the city gate, while the Arameans from Zobah and Rehob, along with the army from Tob and Maacah, were out by themselves in the open fields.