Matthew Poole and continuators on Jeremiah 48:31

31 Therefore will I howl for Moab, and I will cry out for all Moab, mine heart shall mourn for the men of Kir-herez .

Though wicked men rejoyce, and Triumph in the ruine of good men, yet their Charity suffereth them not to do the like, but ingageth them to mourn for them in the day of their Affliction. Ieremy declareth his compassion toward these Moabites, tho' they derided the Iews when they were carried into Captivity. Nay he mourns upon the prospect of their Misery at some distance when the sight of the Iews present Calamity would not affect the Moabites with any compassion at all, we find the like compassion in another Prophet Isaiah, chap. 16.11. ver. 7. there it is called Kir-haraseth, which was a City of Moab as we read, 2 King 3.25.