Coke's Commentary on the Holy Bible
Isaiah 20:5-6
And they shall be afraid, &c.— We have, in these words, the consequence of the divine judgment upon the Egyptians and Cushites; and the scope of the prophesy, namely, to convince the inhabitants of Palestine, and, among these, some factious persons in Jerusalem, of the vanity of the confidence which they placed in the Egyptians and Cushites, as their tutelar deity; for when they should see the completion of this prophesy, they would then condemn their own folly, for placing their expectations on so feeble a defence. All the maritime places, or places on the sea-coast, are called by the word אי ai, isle; the prophet therefore may here mean the seacoasts of Palestine, where was the city of Ashdod, or Azotus. Some, who imagine that the Scriptures call any place or country an isle, suppose that the prophet means Judah, or Jerusalem; but the truth seems to be, that he is to be understood as speaking largely and generally of the inhabitants of Palestine. See Vitringa.
REFLECTIONS.—We have here,
1. The date of the prophesy. See the Critical Annotations.
2. The sign given of the destruction to be brought on Egypt and Ethiopia. Isaiah is commanded to take off his habit of sackcloth, (which, as a prophet, he wore to signify his deadness to the ornaments of dress, or as mourning over the desolations of Judah and Israel,) to put his shoes, and to walk naked, probably not absolutely so, but stripped of his upper garment, and barefoot. How long he continued to go thus is not certain; whether once, or three days, a day for a year, or possibly three years, as our English translation seems to imply; though the three years rather refer to the prophesy, which should be accomplished after that time; or imply that so long a time the Assyrian king would employ in subduing them. See the Notes. The prophet, without hesitation, as a faithful servant, obeys the divine command, dangerous as it might be to his health, and however much it exposed his person to contempt. And God explains the sign, as prefiguring the miserable and shameful captivity of the Egyptians and Ethiopians, who should thus be led away prisoners by the Assyrians. Note; (1.) When duty calls, we must trust health, character, and all into God's hands. If he says, Well done, good and faithful servant, it will infinitely overbalance every inconvenience or insult that we may have received. (2.) Miserable is the condition of these poor captives; but how much more miserable those slaves of sin, who are led captive by the devil at his will! What confusion will cover them, when, in the presence of God, his saints and angels, the shame of their nakedness shall appear, and no eye pity them!
3. The warning given the Jews of the folly of depending on these nations. Ethiopia was their trust, and Egypt the ally in which they gloried; but now, afraid at the ruin of these potent neighbours, and confounded at seeing their supports thus removed, the inhabitants of this isle, Palestine, so called, shall say, Behold such is our expectation, so vain, so foolish, whither we flee for help, even to those who cannot help themselves; and how then shall we escape, when mightier foes are unable to withstand the victorious arms of the Assyrian army? Note; Creature-confidences will assuredly fail us; and they who have neglected to make God their refuge in the day of calamity, will be abandoned to despair, and too late bewail their folly.