Joab put the rest of the army of Israel under Abishai’s command. Abishai was Joab’s brother. Those soldiers went out to fight against the Ammonite army.
Joab’s brother, Abishai, was the leader of the Three Heroes. He fought 300 men with his spear and killed them. Abishai was as famous as the Three Heroes.
Joab saw that there were two army groups ready to fight against him. One group was in front of him and the other group was behind him. So Joab chose some of the best soldiers of Israel. He sent them out to fight against the army of Aram.
Joab said to Abishai, “If the army from Aram is too strong for me, then you must help me. But if the Ammonite army is too strong for you, then I will help you.