Joab said, "If the Arameans are too strong for me, then you are to rescue me; but if the Ammonites are too strong for you, then I will rescue you."
NIV
And he said, If the Syrians are too strong for me, then you help me; but if the Ammonites are too strong for you, I will help you.
AMP
And 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.
KJV