1 Chronicles 19:8-10

New Revised Standard Version Catholic Edition

⁸ When David heard of it, he sent Joab and all the army of the warriors. ⁹ The Ammonites came out and drew up in battle array at the entrance of the city, and the kings who had come were by themselves in the open country.

¹⁰ When Joab saw that the line of battle was set against him both in front and in the rear, he chose some of the picked men of Israel and arrayed them against the Arameans;