II Samuel 10:8-9, 11-12

Then 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. When 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.

Then 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. Be 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.”