And their south border was from the shore of the salt sea,.... Sometimes called the dead sea, the sea of Sodom, and the lake Asphaltites, which, as Jarchi observes, was southeast of the land of Israel: from the bay that looketh southward; or the "tongue", as the Hebrew, which the Targum and Kimchi interpret of a rock or promontory, the point that ran out into the sea, looking to the southeast.