Isaiah 23:10

The consequence of the fall of Tyre is, that the colonies achieve their independence, Tartessus being mentioned by way of example. "Overflow thy land like the Nile, O daughter of Tarshish! No girdle restrains thee any longer." The girdle (mēzach) is the supremacy of Tyre, which has hitherto restrained all independent action on the part of the colony. Now they no longer need to wait in the harbour for the ships of the mother city, no longer to dig in the mines as her tributaries for silver and other metals. The colonial territory is their own freehold now, and they can spread themselves over it like the Nile when it passes beyond its banks and overflows the land. Koppe has already given this as the meaning of Isa 23:10.

This chapter is concerning Tyre, an ancient wealthy city, situated upon the sea, and for many ages one of the most celebrated cities for trade and merchandise in those parts of the world. The lot of the tribe of Asher bordered upon it. See Jos 19:29, where it is called "the strong city Tyre." We seldom find it a dangerous enemy to Israel, but sometimes their faithful ally, as in the reigns of David and Solomon; for trading cities maintain their grandeur, not by the conquest of their neighbours, but by commerce with them. In this chapter is foretold, I. The lamentable desolation of Tyre, which was performed by Nebuchadnezzar and the Chaldean army, about the time that they destroyed Jerusalem; and a hard task they had of it, as appears Eze 29:18, where they are said to have "served a hard service against Tyre," and yet to have no wages (Isa 23:1-14). II. The restoration of Tyre after seventy years, and the return of the Tyrians out of their captivity to their trade again (Isa 23:15-18).

23:10 Sweep over the land like the flooding Nile: This difficult phrase means either (1) that the sailors who had returned from Tarshish were being invited to loot ruined Tyre; or (2) that the people of Tarshish were forced to move back to their agricultural fields to make their living (instead of trading) now that Tyre had been destroyed.