The prophet turns from Arabia to Mesopotamia. Haran, where Abraham lived for a time (Gen. 12:4), was in northwestern Mesopotamia on the Balikh River at the crossroads of two great caravan routes.
This is the same Sheba as mentioned earlier (v. 22). The name is probably out of its order here. It does not appear in the LXX.
Asshur.
The common name for Assyria, but the fact that it is listed here with other cities has led some scholars to identify it with the modern Qal‘ât Sherqâṭ on the west bank of the Tigris, about 50 mi. south of Nineveh.
Chilmad.
An unknown site, probably located not far from the city of Asshur.