1 Chronicles 19:8-10

New King James Version

⁸ Now when David heard of it, he sent Joab and all the army of the mighty men. ⁹ Then the people of Ammon came out and put themselves in battle array before the gate of the city, and the kings who had come were by themselves in the field.

¹⁰ 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.