Charles Ellicott Commentary Jeremiah 13:19

"The cities of the South are shut up, and there is none to open them: Judah is carried away captive, all of it; it is wholly carried away captive." — Jeremiah 13:19 (ASV)

The cities of the south. —The term so rendered (the Negeb) is throughout the Old Testament used for a definite district, stretching from Mount Halak northward to a line south of Engedi and Hebron. The strategy of Nebuchadnezzar’s attack (as it had been of Sennacherib’s, 2 Kings 18:13) was to blockade the cities of this region, and then, when they were cut off from sending assistance, to attack Jerusalem.

Shall be shut up ... shall be carried away. —Both verbs should be in the present tense, are shut up, is carried away.