1 Chronicles 19:8-10

Good News Translation

⁸ When David heard what was happening, he sent out Joab and the whole army. ⁹ The Ammonites marched out and took up their position at the entrance to Rabbah, their capital city, and the kings who had come to help took up their position in the open countryside.

¹⁰ Joab saw that the enemy troops would attack him in front and from the rear, so he chose the best of Israel's soldiers and put them in position facing the Syrians.