Every man right forth - The Ammonites will live in terror of the tribes which rove in the neighborhood, and at the slightest alarm will flee straight away without resistance.
Matthew Henry
Concise Bible Commentary
Might often prevails against right among men, yet that might shall be controlled by the Almighty, who judges aright; and those will find themselves mistaken, who, like the Ammonites, think every thing their own on which they can lay their hands. The Lord will call men to account for every instance of dishonesty, especially to the destitute.