1 Chronicles 19:8-13

8On hearing this, David sent Joab and the entire army of mighty men.

9The children of Ammon came out and took up battle formation at the city gate, while the kings who had come were by themselves in the field.

10When Joab saw that there was a battle line against him both in front and rear, he selected some of Israel’s best men and deployed them against the Arameans.

11He put the rest of the people under the command of his brother Abishai, and arrayed them against the Ammonites.

12He said: “If the Arameans are too strong for me, then you will help me, but if the Ammonites are too strong for you, then I will help you.

13Chazak! Take courage for the sake of our people and the cities of our God! Adonai will do what is good in His eyes.”