Woe to the {a} land shadowing with wings, which is beyond the rivers of Cush:

(a) He means that part of Ethiopia which lies toward the sea, which was so full of ships that the sails (which he compares to wings) seemed to shadow the sea.

Wesley's Notes

18:1 The lord - Either Ethiopia beyond Egypt; or of Egypt. Wings - The title of wings is given, in scripture, to divers things which have some kind of resemblance to wings, as to the battlements of an house or temple, to an army, and to the sails of a ship, as this word is here commonly understood. And shadowing with wings is nothing else but overspread or filled with them. Which title may be given either to Ethiopia or Egypt, in regard of the great numbers either of their armies, or of their ships or vessels sailing upon the sea or rivers. Besides - Situated on both sides of the Nile. Rivers - Called rivers, in the plural number, either for its greatness, or for the many rivulets that run into it, or for the various streams into which it is divided.

Jamieson-Fausset-Brown Bible Commentary

CHAPTER 18

Isa 18:1-7.

Isaiah announces the overthrow of Sennacherib's hosts and desires the Ethiopian ambassadors, now in Jerusalem, to bring word of it to their own nation; and he calls on the whole world to witness the event (Isa 18:3). As Isa 17:12-14 announced the presence of the foe, so Isa 18:1-7 foretells his overthrow.

1. Woe-The heading in English Version, "God will destroy the Ethiopians," is a mistake arising from the wrong rendering "Woe," whereas the Hebrew does not express a threat, but is an appeal calling attention (Isa 55:1; Zec 2:6): "Ho." He is not speaking against but to the Ethiopians, calling on them to hear his prophetical announcement as to the destruction of their enemies.

shadowing with wings-rather, "land of the winged bark"; that is, "barks with wing-like sails, answering to vessels of bulrushes" in Isa 18:2; the word "rivers," in the parallelism, also favors it; so the Septuagint and Chaldee [Ewald]. "Land of the clanging sound of wings," that is, armies, as in Isa 8:8; the rendering "bark," or "ship," is rather dubious [Maurer]. The armies referred to are those of Tirhakah, advancing to meet the Assyrians (Isa 37:9). In English Version, "shadowing" means protecting-stretching out its wings to defend a feeble people, namely, the Hebrews [Vitringa]. The Hebrew for "wings" is the same as for the idol Cneph, which was represented in temple sculptures with wings (Ps 91:4).

beyond-Meroe, the island between the "rivers" Nile and Astaboras is meant, famed for its commerce, and perhaps the seat of the Ethiopian government, hence addressed here as representing the whole empire: remains of temples are still found, and the name of "Tirhakah" in the inscriptions. This island region was probably the chief part of Queen Candace's kingdom (Ac 8:27). For "beyond" others translate less literally "which borderest on."

Ethiopia-literally, "Cush." Horsley is probably right that the ultimate and fullest reference of the prophecy is to the restoration of the Jews in the Holy Land through the instrumentality of some distant people skilled in navigation (Isa 18:2; Isa 60:9, 10; Ps 45:15; 68:31; Zep 3:10). Phonician voyagers coasting along would speak of all Western remote lands as "beyond" the Nile's mouths. "Cush," too, has a wide sense, being applied not only to Ethiopia, but Arabia-Deserta and Felix, and along the Persian Gulf, as far as the Tigris (Ge 2:13).

Matthew Henry's Concise Commentary

18:1-7 God's care for his people; and the increase of the church. - This chapter is one of the most obscure in Scripture, though more of it probably was understood by those for whose use it was first intended, than by us now. Swift messengers are sent by water to a nation marked by Providence, and measured out, trodden under foot. God's people are trampled on; but whoever thinks to swallow them up, finds they are cast down, yet not deserted, not destroyed. All the dwellers on earth must watch the motions of the Divine Providence, and wait upon the directions of the Divine will. God gives assurance to his prophet, and by him to be given to his people. Zion is his rest for ever, and he will look after it. He will suit to their case the comforts and refreshments he provides for them; they will be acceptable, because seasonable. He will reckon with his and their enemies; and as God's people are protected at all seasons of the year, so their enemies are exposed at all seasons. A tribute of praise should be brought to God from all this. What is offered to God, must be offered in the way he has appointed; and we may expect him to meet us where he records his name. Thus shall the nations of the earth be convinced that Jehovah is the God, and Israel is his people, and shall unite in presenting spiritual sacrifices to his glory. Happy are those who take warning by his judgment on others, and hasten to join him and his people. Whatever land or people may be intended, we are here taught not to think that God takes no care of his church, and has no respect to the affairs of men, because he permits the wicked to triumph for a season. He has wise reasons for so doing, which we cannot now understand, but which will appear at the great day of his coming, when he will bring every work into judgment, and reward every man according to his works.