1 Chronicles 19:8-10

Revised Standard Version

⁸ When David heard of it, he sent Jo′ab and all the army of the mighty men. ⁹ And 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 Jo′ab saw that the 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 Syrians;