2 Samuel 10:8-9, 11-12

The sons of Ammon came out and drew up in battle array at the entrance of the city, while the Arameans of Zobah and of Rehob and the men of Tob and Maacah were by themselves in the field. Now when Joab saw that the battle was set against him in front and in the rear, he selected from all the choice men of Israel, and arrayed them against the Arameans.

He said, “If the Arameans are too strong for me, then you shall help me, but if the sons of Ammon are too strong for you, then I will come to help you. Be strong, and let us show ourselves courageous for the sake of our people and for the cities of our God; and may the LORD do what is good in His sight.”