יחזקאל מז:יא פירוש: רש״י

Its marshes [The marshes] of the sea, as in (Job 8:11): “Can papyrus shoot up without a marsh (בִצָה)?” This is maresc in Old French, a marsh.

and its pools [Heb. וּגְבָאָיו,] like (II Kings 3:16): “This valley will be full of pools.” The בִּצִים are the marshes around it, and the גֵבִים are ditches in which water is gathered.

will not be healed to be turned sweet. Why? Because “they will be set aside for salt [mines].”