John Wesley's Explanatory Notes
on the Whole Bible
The captivity of Egypt and Ethiopia represented, to take off the Jews from seeking to them for help, verse 1-6
Sargon - Sennacherib, who, before he came to Jerusalem, came up against and took all the walled cities of Judah, of which Ashdod might be reckoned one, as being in the tribe of Judah.
Sackcloth - Which he wore in token of his grief for the calamities that were already come upon Israel, and were coming upon Judah. Naked - Not wholly naked, but without his upper garment, as slaves and prisoners used to do, whose posture he was to represent. Bare-foot - After the manner of mourners and captives.
Three years - Not constantly, but when he went abroad among the people, to whom this was appointed for a sign. A sign - When this judgment should come, namely, three years after this prophecy.
Uncovered - Having their garments cut off by the middle.
They - All that shall trust to them. But under this general expression the Israelites, seem to be principally intended.
Of the country - Of this land, in which the prophet was, and to whose inhabitants, these words were uttered. Such - So vain is our hope placed upon such a people as are unable to deliver themselves.