1 Chronicles 19:10-15

10Now when Joab saw that the battle was set against him before and behind, he chose of all the choice men of Israel, and put them in array against the Syrians. 11And the rest of the people he committed into the hand of Abishai his brother; and they put themselves in array against the children of Ammon. 12And he said, If the Syrians be too strong for me, then thou shalt help me; but if the children of Ammon be too strong for thee, then I will help thee. 13Be of good courage, and let us play the man for our people, and for the cities of our God: and Jehovah do that which seemeth him good. 14So Joab and the people that were with him drew nigh before the Syrians unto the battle; and they fled before him. 15And when the children of Ammon saw that the Syrians were fled, they likewise fled before Abishai his brother, and entered into the city. Then Joab came to Jerusalem.