4 Why are you lifted up in pride on account of your valleys, your flowing valley, O daughter ever turning away? who puts her faith in her wealth, saying, Who will come against me?

Matthew Henry's Commentary on Jeremiah 49:4

Commentary on Jeremiah 49:1-6

(Read Jeremiah 49:1-6)

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.