Divrey Hayamim Alef 19:9-11

Orthodox Jewish Bible

⁹ And the Bnei Ammon came out, and drew up for milchamah before the gate of the Ir, and the melachim that were come were by themselves in the sadeh.

¹⁰ Now when Yoav saw that the milchamah was set against him before and behind, he chose out of all the best of Yisroel, and deployed them to engage Aram (the Syrians).

¹¹ And the rest of the people he delivered unto the yad of Avishai his brother, and they deployed to engage the Bnei Ammon.