Isaiah 20:3

It is not till Isaiah has carried out the divine instructions, that he learns the reason for this command to strip himself, and the length of time that he is to continue so stripped. "And Jehovah said, As my servant Yesha'yahu goeth naked and barefooted, a sign and type for three years long over Egypt and over Ethiopia, so will the king of Asshur carry away the prisoners of Egypt and the exiles of Ethiopia, children and old men, naked and barefooted, and with their seat uncovered - a shame to Egypt." The expression "as he goeth" (ca'asher hâlac) stands here at the commencement of the symbolical action, but it is introduced as if with a retrospective glance at its duration for three years, unless indeed the preterite hâlac stands here, as it frequently does, to express what has already commenced, and is still continuing and customary (compare, for example, Job 1:4 and Psa 1:1). The strange and unseemly dress of the prophet, whenever he appeared in his official capacity for three whole years, was a prediction of the fall of the Egypto-Ethiopian kingdom, which was to take place at the end of these three years. Egypt and Ethiopia are as closely connected here as Israel and Judah in Isa 11:12. They were at that time one kingdom, so that the shame of Egypt was the shame of Ethiopia also. ‛Ervâh is a shameful nakedness, and ‛ervath Mitzrayim is in apposition to all that precedes it in Isa 20:4. Shēth is the seat or hinder part, as in Sa2 10:4, from shâthâh, to set or seat; it is a substantive form, like בּן, עץ, רע, שׁם, with the third radical letter dropt. Chashūphay has the same ay as the words in Isa 19:9; Jdg 5:15; Jer 22:14, which can hardly be regarded as constructive forms, as Ewald, Knobel, and Gesenius suppose (although ־י of the construct has arisen from ־י),…

This chapter is a prediction of the carrying away of multitudes both of the Egyptians and the Ethiopians into captivity by the king of Assyria. Here is, I. the sign by which this was foretold, which was the prophet's going for some time barefoot and almost naked, like a poor captive (Isa 20:1-2). II. The explication of that sign, with application to Egypt and Ethiopia (Isa 20:3-5). III. The good use which the people of God should make of this, which is never to trust in an arm of flesh, because thus it will deceive them (Isa 20:6).

20:3-4 This symbolic event took place some three years before the fall of Ashdod (see 20:2). Through it, Isaiah became an object lesson for the people (see 8:18).