and the Arabah to the Sea of Chinneroth eastward, and in the direction of Beth-jeshimoth, to the Sea of the Arabah, the Salt Sea, southward to the foot of the slopes of Pisgah;
Joshua, or whoever else is the historian before he comes to sum up the new conquests Israel had made, in these verses receives their former conquests in Moses's time, under whom they became masters of the great and potent kingdoms of Sihon and Og.
Commenting on Joshua 12:1-6
And from the plain,.... Or rather, "and the plain", the plains of Moab, which, before possessed by the Israelites, belonged to the kingdom of Sihon; and the plains of Jordan, which reached to the sea of Cinneroth on the east; the same with the lake of Gennesaret, and sea of Tiberias, mentioned in the New Testament, Mat 14:34, and unto the sea of the plain...
The sea of Chinneroth - Or Gennesareth, the same as the lake or sea of Tiberias. The Salt Sea on the east - ים המלח yam hammelach, which is here translated the Salt Sea, is understood by others to mean the sea of the city Melach. Where can we find any thing that can be called a salt sea on the east of the lake of Gennesareth?