2 Samuel 10:6-14

⁶ And when the children of Ammon saw that they had made themselves hated by David, they sent to the Aramaeans of Beth-rehob and Zobah, and got for payment twenty thousand footmen, and they got from the king of Maacah a thousand men, and from Tob twelve thousand. ⁷ And hearing of this, David sent Joab and all the army and the best fighting-men. ⁸ And the children of Ammon came out and put their forces in position at the way into the town: and the Aramaeans of Zobah and of Rehob, with the men of Tob and Maacah, were by themselves in the field. ⁹ Now when Joab saw that their forces were in position against him in front and at his back, he took the best of the men of Israel and put them in line against the Aramaeans; ¹⁰ And the rest of the people he put in position against the children of Ammon, with Abishai, his brother, at their head. ¹¹ And he said, If the Aramaeans are stronger and get the better of me, then you are to come to my help; but if the children of Ammon get the better of you, I will come to your help. ¹² Take heart, and let us be strong for our people and for the towns of our God, and may the Lord do what seems good to him. ¹³ Then Joab and the people with him went forward to the fight against the Aramaeans, and they went in flight before him. ¹⁴ And when the children of Ammon saw the flight of the Aramaeans, they themselves went in flight from Abishai, and came into the town. So Joab went back from fighting the children of Ammon and came to Jerusalem.