Then said he to me, These waters issue out toward the east country, and go down into the desert, and go into the {d} sea: which being brought forth into the sea, the waters shall be healed.

(d) Showing that the abundance of these graces would be so great, that all the world would be full of it, which is here meant by the Persian sea, or Genezareth, and the sea called Mediterranean, Zec 14:8.

Wesley's Notes

47:8 The sea - The Dead - sea, or lake of Sodom. Shall be healed - The waters of the sea shall be healed, made wholesome. So where the grace of God from his temple and altar flows, it heals the corrupt nature of man, and renders barren terrible deserts, as a land of waters and gardens.

King James Translators' Notes

desert: or, plain

Jamieson-Fausset-Brown Bible Commentary

8. the desert-or "plain," Hebrew, Arabah (De 3:17; 4:49; Jos 3:16), which is the name still given to the valley of the Jordan and the plain south of the Dead Sea, and extending to the Elanitic gulf of the Red Sea.

the sea-the Dead Sea. "The sea" noted as covering with its waters the guilty cities of the plain, Sodom and Gomorrah. In its bituminous waters no vegetable or animal life is said to be found. But now death is to give place to life in Judea, and throughout the world, as symbolized by the healing of these death-pervaded waters covering the doomed cities. Compare as to "the sea" in general, regarded as a symbol of the troubled powers of nature, disordered by the fall, henceforth to rage no more, Re 21:1.

Matthew Henry's Concise Commentary

47:1-23 These waters signify the gospel of Christ, which went forth from Jerusalem, and spread into the countries about; also the gifts and powers of the Holy Ghost which accompanied it, by virtue of which is spread far, and produced blessed effects. Christ is the Temple; and he is the Door; from him the living waters flow, out of his pierced side. They are increasing waters. Observe the progress of the gospel in the world, and the process of the work of grace in the heart; attend the motions of the blessed Spirit under Divine guidance. If we search into the things of God, we find some things plain and easy to be understood, as the waters that were but to the ankles; others more difficult, which require a deeper search, as the waters to the knees, or the loins; and some quite beyond our reach, which we cannot penetrate; but must, as St. Paul did, adore the depth, Ro 11. It is wisdom to begin with that which is most easy, before we proceed to that which is dark and hard to be understood. The promises of the sacred word, and the privileges of believers, as shed abroad in their souls by the quickening Spirit, abound where the gospel is preached; they nourish and delight the souls of men; they never fade nor wither, nor are exhausted. Even the leaves serve as medicines to the soul: the warnings and reproofs of the word, though less pleasant than Divine consolations, tend to heal the diseases of the soul. All who believe in Christ, and are united to him by his sanctifying Spirit, will share the privileges of Israelites. There is room in the church, and in heaven, for all who seek the blessings of that new covenant of which Christ is Mediator.