1 Chronicles 19:9-11

Young's Literal Translation

⁹ and the sons of Ammon come out and set battle in array at the opening of the city, and the kings who have come [are] by themselves in the field.

¹⁰ And Joab seeth that the front of the battle hath been unto him, before and behind, and he chooseth out of all the choice in Israel, and setteth in array to meet Aram,

¹¹ and the remnant of the people he hath given into the hand of Abishai his brother, and they set in array to meet the sons of Ammon.