Based upon Isaiah 16:7. Therefore. Moab cannot escape the catastrophe, for his moral basis is utterly insecure. "Therefore," etc. Will I howl. It is at first sight strange that the prophet should speak thus sympathetically after the strong language in verse 26.
But the fact is that an inspired prophet has, as it were, a double personality. Sometimes his human feelings seem quite lost in the consciousness of his message; sometimes (and especially in Jeremiah) the natural, emotional life refuses to be thus restrained, and will have itself expressed.
All Moab; i.e. Moab in all its districts, both north and south of the Amen, or, at any rate, the fugitive populations. Mine heart shall mourn. The Authorized Version effaces one of the points of difference between Jeremiah and his original.
The former leaves the subject indefinite—one shall mourn. For the men of Kir-heres. Isaiah 16:7 has "for the raisin cakes of Kir-heres" (i.e. for the cakes of pressed grapes, for which Kir-heres was specially famous)—a much more expressive phrase.
Jeremiah, or his scribe, has changed ashishe into anshe, and the Targum and Septuagint have adopted this weak reading in Isaiah, l.c.