Charles Ellicott Commentary Jeremiah 49:31-33

"Arise, get you up unto a nation that is at ease, that dwelleth without care, saith Jehovah; that have neither gates nor bars, that dwell alone. And their camels shall be a booty, and the multitude of their cattle a spoil: and I will scatter unto all winds them that have the corners [of their hair] cut off; and I will bring their calamity from every side of them, saith Jehovah. And Hazor shall be a dwelling-place of jackals, a desolation for ever: no man shall dwell there, neither shall any son of man sojourn therein." — Jeremiah 49:31-33 (ASV)

Arise, get you up... — The command of Jehovah goes out to the invaders. Their work will be an easy one. They are sent against a people who dwell defenseless in the open country: these people have no walls or gates, dwell alone, are without allies, and their camels and flocks offer an easy prey.

Compare this to the description of Laish in Judges 18:7. The prophet repeats the characteristic term of scorn which we have found in Jeremiah 9:26; Jeremiah 25:23: “them that dwell in the utmost corners,” or more accurately, those with cropped-hair temples, as descriptive of the wild tribes that are thus doomed to destruction.

Their land will be a dwelling-place for jackals (not “dragons”; see Note on Jeremiah 9:11), desolate forever.