2 Samuel 10:6-14

⁶ When the Ammonites saw that they had become odious to David, the Ammonites sent and hired the Arameans of Beth-rehob and the Arameans of Zobah, twenty thousand foot soldiers, as well as the king of Maacah, one thousand men, and the men of Tob, twelve thousand men. ⁷ When David heard of it, he sent Joab and all the army with the warriors. ⁸ The Ammonites came out and drew up in battle array at the entrance of the gate; but the Arameans of Zobah and of Rehob, and the men of Tob and Maacah, were by themselves in the open country. ⁹ When Joab saw that the battle was set against him both in front and in the rear, he chose some of the picked men of Israel, and arrayed them against the Arameans; ¹⁰ the rest of his men he put in the charge of his brother Abishai, and he arrayed them against the Ammonites. ¹¹ He said, "If the Arameans are too strong for me, then you shall help me; but if the Ammonites are too strong for you, then I will come and help you. ¹² Be strong, and let us be courageous for the sake of our people, and for the cities of our God; and may the Lord do what seems good to him." ¹³ So Joab and the people who were with him moved forward into battle against the Arameans; and they fled before him. ¹⁴ When the Ammonites saw that the Arameans fled, they likewise fled before Abishai, and entered the city. Then Joab returned from fighting against the Ammonites, and came to Jerusalem.