2 Samuel 10:7-12

7Now when David heard of it, he sent Joab and all the army of the mighty men.

8Then the people of Ammon came out and put themselves in battle array at the entrance of the gate. And the Syrians of Zoba, Beth Rehob, Ish-Tob, and Maacah were by themselves in the field.

9When Joab saw that the battle line was against him before and behind, he chose some of Israel’s best and put them in battle array against the Syrians.

10And the rest of the people he put under the command of Abishai his brother, that he might set them in battle array against the people of Ammon.

11Then he said, “If the Syrians are too strong for me, then you shall help me; but if the people of Ammon are too strong for you, then I will come and help you.

12Be of good courage, and let us be strong for our people and for the cities of our God. And may the Lord do what is good in His sight.”