1 Chronicles 19:8-10

Expanded Bible

⁸ When David heard about this, he sent Joab with the ·whole army [entire army of warriors/mighty men]. ⁹ The Ammonites came out and ·prepared for battle [drew up in battle lines] at the city ·gate [entrance]. The kings who had come to help were out in the ·field [open country] by themselves.

¹⁰ Joab saw that there were enemies both in front of him and behind him. So he chose some of the ·best [elite] soldiers of Israel and ·sent them out to fight [deployed/arrayed them against] the ·Arameans [or Ammonites, 2 Sam. 10:10].