2 Samuel 10:5-9
English Standard Version
6When the Ammonites saw that they had become a stench to David, the Ammonites sent and hired the Syrians of Beth-rehob, and the Syrians of Zobah, 20,000 foot soldiers, and the king of Maacah with 1,000 men, and the men of Tob, 12,000 men.
7And when David heard of it, he sent Joab and all the host of the mighty men.
8And the Ammonites came out and drew up in battle array at the entrance of the gate, and the Syrians of Zobah and of Rehob and the men of Tob and Maacah were by themselves in the open country.