For through the voice of the - Lord By the command of the Lord; that is, his voice going forth in the manner specified in Isaiah 30:30.

Which smote with a rod - Who was accustomed to smite as with a rod; that is, his government was tyrannical and severe. As he had been accustomed to smite in that manner, so he would now meet the proper reward of his oppression of the nations.

Which smote with a rod "He that was ready to smite with his staff" - "Post אשור ashshur, forte excidit אשר asher." - Secker. After אשור ashshur, probably אשר asher, "which, "has been omitted.

For through the voice of the Lord shall the Assyrian be beaten down,.... As anything is by a storm of thunder, lightning, hail, and rain: or "fear", or be "affrighted", as the Vulgate Latin and Arabic versions render it; Sennacherib, the Assyrian monarch, and that part of his army which escaped, though not destroyed by it, were put into the utmost consternation: this shows that the prophecy in the context refers to the overthrow of the Assyrian army by the angel, when besieging Jerusalem in Hezekiah's time; though the Assyrian is sometimes used for any enemy of God's people at other times, particularly antichrist, and especially the eastern antichrist, the Turk:

which smote with a rod; other nations, particularly the Jews, whom the Assyrian is expressly said to smite with a rod; and because he was an instrument in God's hand for the chastising of that people, he is called the rod of his anger, Isaiah 10:5 but now he that smote shall be smitten himself; him whom God used as a rod to correct others, he will smite with his rod, for his own correction: for this may be understood of God, and be rendered thus, "with a rod, he", that is, God, "shall smite" the Assyrian, as before; so Aben Ezra and Kimchi. The Targum interprets the "rod" of dominion.

For through the voice of the LORD shall the Assyrian be beaten down, who smote with a {c} rod.

(c) God's plague.

31. The Assyrian rod which beat shall itself be beaten, and that by the mere voice of the Lord, that is, an unseen divine agency (Isa 10:5, 24).

30:27-33 God curbs and restrains from doing mischief. With a word he guides his people into the right way, but with a bridle he turns his enemies upon their own ruin. Here, in threatening the ruin of Sennacherib's army, the prophet points at the final and everlasting destruction of all impenitent sinners. Tophet was a valley near Jerusalem, where fires were continually burning to destroy things that were hurtful and offensive, and there the idolatrous Jews caused their children to pass through the fire to Moloch. This denotes the certainty of the destruction, as an awful emblem of the place of torment in the other world. No oppressor shall escape the Divine wrath. Let sinners then flee to Christ, seeking to be reconciled to Him, that they may be safe and happy, when destruction from the Almighty shall sweep away all the workers of iniquity.