Jesaja 7:18

"And it comes to pass in that day, Jehovah will hiss for the fly which is at the end of the Nile-arms of Egypt, and the bees that are in the land of Asshur; and they come and settle all of them in the valleys of the slopes, and in the clefts of the rocks, and in all the thorn-hedges, and upon all grass-plats." The prophet has already stated, in Isa 5:26, that Jehovah would hiss for distant nations; and how he is able to describe them by name. The Egyptian nation, with its vast and unparalleled numbers, is compared to the swarming fly; and the Assyrian nation, with its love of war and conquest, to the stinging bee which is so hard to keep off (Deu 1:44; Psa 118:12). The emblems also correspond to the nature of the two countries: the fly to slimy Egypt with its swarms of insects (see Isa 18:1), (Note: Egypt abounds in gnats, etc., more especially in flies (muscariae), including a species of small fly (nemâth), which is a great plague to men throughout all the country of the Nile (see Hartmann, Natur-geschichtlich-medicinische Skizze der Nillnder, 1865, pp. 204- 5).) and the bee to the more mountainous and woody Assyria, where the keeping of bees is still one of the principal branches of trade. יאר, pl. יארים, is an Egyptian name (yaro, with the article phiaro, pl. yarōu) for the Nile and its several arms. The end of the Nile-arms of Egypt, from a Palestinian point of view, was the extreme corner of the land. The military force of Egypt would march out of the whole compass of the land, and meet the Assyrian force in the Holy Land; and both together would cover the land in such a way that the valleys of steep precipitous heights (nachalee habbattoth), and clefts of the rocks (nekikē hasselâ‛im), and all the thorn-hedges (nâ‛azūzı̄m) and pastures (nahalolim, from nihē…

This chapter is an occasional sermon, in which the prophet sings both of mercy and judgment to those that did not perceive or understand either; he piped unto them, but they danced not, mourned unto them, but they wept not. Here is, I. The consternation that Ahaz was in upon an attempt of the confederate forces of Syria and Israel against Jerusalem (Isa 7:1, Isa 7:2). II. The assurance which God, by the prophet, sent him for his encouragement, that the attempt should be defeated and Jerusalem should be preserved (Isa 7:3-9). III. The confirmation of this by a sign which God gave to Ahaz, when he refused to ask one, referring to Christ, and our redemption by him (Isa 7:10-16). IV. A threatening of the great desolation that God would bring upon Ahaz and his kingdom by the Assyrians, notwithstanding their escape from this present storm, because they went on still in their wickedness (Isa 7:17-25). And this is written both for our comfort and for our admonition.

7:18-25 The repetition of in that day referred to the yet future day of the Lord. Judah would experience the judgment already announced by Isaiah as a foretaste of an even greater judgment to come: exile in Babylon (586–538 BC).