Then shall the Assyrian fall with the sword - The sword is often used as an instrument of punishment. It is not meant here literally that the sword would be used, but it is employed to denote that complete destruction would come upon them.

Not of a mighty man - The idea here is, that the army should not fall by the valor of a distinguished warrior, but that it should be done by the direct interposition of God (see Isaiah 37:36).

Of a mean man - Of a man of humble rank. His army shall not be slain by the hand of mortals.

But he shall flee - The Assyrian monarch escaped when his army was destroyed, and fled toward his own land; Isaiah 37:37.

From the sword - Margin, 'For fear of.' The Hebrew is 'From the face of the sword;' and the sense is, that he would flee in consequence of the destruction of his host, here represented as destroyed by the sword of Yahweh.

And his young men - The flower and strength of his army.

Shall be discomfited - Margin, 'For melting;' or 'tribute,' or 'tributary.' Septuagint, Εἰς ἥττημα Eis hēttēma - 'For destruction.' The Hebrew word (מס mas), derived probably from מסס mâsas, "to melt away, to dissolve") is most usually employed to denote a levy, fine, or tax - so called, says Taylor, because it wastes or exhausts the substance and strength of a people. The word is often used to denote that people become tributary, or vassals, as in Genesis 49:15; Deuteronomy 20:11; compare Joshua 16:10; 2 Samuel 20:24; 1 Kings 4:6; 1 Kings 5:13; Esther 10:1. Probably it does not here mean that the strength of the Assyrian army would become literally tributary to the Jews, but that they would be as if they had been placed under a levy to them; their vigor and strength would melt away; as property and numbers do under taxation and tribute.

"Wherefore do ye weigh out your silver (בלוא לחם belo lechem) for the no-bread."

Isaiah 31:8Then shall the Assyrian fall, etc. - Because he was to be discomfited by the angel of the Lord, destroying in his camp, in one night, upwards of one hundred and eighty thousand men; and Sennacherib himself fell by the hands of the princes, his own sons. Not mighty men, for they were not soldiers; not mean men, for they were princes.

Then shall the Assyrian fall with the sword, not of a mighty man,.... That is, the Assyrian army under Sennacherib their king, which besieged Jerusalem in Hezekiah's time; which, as soon as the people were brought to a sense of their sin, and repentance for it, and cast away their idols as a proof of it, were utterly destroyed; but not in battle, not by the sword of Hezekiah, or any of his valiant generals:

and the sword, not of a mean man, shall devour him; neither the sword of a general, nor of a private soldier, nor indeed of any man, but of an angel; see 2 Kings 19:35,

but he shall flee from the sword; from the drawn sword of the angel, who very probably appeared in such a form as in 1 Chronicles 21:16 which Sennacherib king of Assyria seeing, as well as the slaughter made in his army by him, fled from it; in the Hebrew text it is added, "for himself" (y); he fled for his life, for his own personal security; see 2 Kings 19:36,

and his young men shall be discomfited; his choice ones, the flower of his army: or "melt away" (z), through fear; or die by the stroke of the angel upon them: the sense of becoming "tributary" seems to have no foundation.

(y) "fugiet sibi", Pagninus, Montanus, Cocceius; "fuga consulet sibi", Junius & Tremellius. (z) "in liquefactionem, erunt", Vatablus; "colliquescent", Piscator.

The second motive is, that Israel will not be rescued by men, but by Jehovah alone; so that even He from whom they have now so deeply fallen will prove Himself the only true ground of confidence. "And Asshur falls by a sword not of a man, and a sword not of a man will devour him; and he flees before a sword, and his young men become tributary. And his rock, for fear will it pass away, and his princes be frightened away by the flags: the saying of Jehovah, who has His fire in Zion, and His furnace in Jerusalem." The lxx and Jerome render this falsely φεύξεται οὐκ (לא) ἀπὸ προσώπου μαχαίρας. לו is an ethical dative, and the prophet intentionally writes "before a sword" without any article, to suggest the idea of the unbounded, infinite, awful (cf., Isaiah 28:2, beyâd; Psalter, vol. i. p. 15). A sword is drawn without any human intervention, and before this Asshur falls, or at least so many of the Assyrians as are unable to save themselves by flight. The power of Asshur is for ever broken; even its young men will henceforth become tributary, or perform feudal service. By "his rock" most commentators understand the rock upon which the fugitive would gladly have taken refuge, but did not dare (Rosenmller, Gesenius, Knobel, etc.); others, again, the military force of Asshur, as its supposed invincible refuge (Saad., etc.); others, the apparently indestructible might of Asshur generally (Vulgate, Rashi, Hitzig). But the presence of "his princes" in the parallel clause makes it most natural to refer "his rock" to the king; and this reference is established with certainty by what Isaiah 32:2 affirms of the king and princes of Judah. Luther also renders it thus: und jr Fels wird fur furcht wegzihen (and their rock will withdraw for fear). Sennacherib really did hurry back to Assyria after the catastrophe in a most rapid flight. Minnēs are the standards of Asshur, which the commanders of the army fly away from in terror, without attempting to rally those that were scattered. Thus speaks Jehovah, and this is what He decrees who has His 'ūr and tannūr in Jerusalem. We cannot suppose that the allusion here is to the fire and hearth of the sacrifices; for tannūr does not mean a hearth, but a furnace (from nūr, to burn). The reference is to the light of the divine presence, which was outwardly a devouring fire for the enemies of Jerusalem, an unapproachable red-hot furnace (ignis et caminus qui devorat peccatores et ligna, faenum stipulamque consumit: Jerome).

{h} Then shall the Assyrian fall with the sword, not of man; and the sword, not of men, shall devour him: but he shall flee from the sword, and his young men shall be made vessels.

(h) When your repentance appears.

31:8 The sword - Not of any man, but of an angel. Discomfited - Heb. shall melt away, a great part of them being destroyed by the angel; and the hearts of the rest melting for fear.

from: or, for fear of

discomfited: or, tributary: Heb. for melting, or, tribute

8. Assyrian-Sennacherib, representative of some powerful head of the ungodly in the latter ages [Horsley].

sword, not of . mighty . mean man-but by the unseen sword of God.

flee-Sennacherib alone fled homewards after his army had been destroyed (Isa 37:37).

young men-the flower of his army.

discomfited-rather, "shall be subject to slavery"; literally, "shall be liable to tribute," that is, personal service (De 20:11; Jos 9:21) [Maurer]. Or, not so well, "shall melt away" [Rosenmuller].

31:6-9 They have been backsliding children, yet children; let them return, and their backslidings shall be healed, though they have sunk deep into misery, and cannot easily recover. Many make an idol of their silver and gold, and by the love of that are drawn from God; but those who turn to God, will be ready to part with it. Then, when they have cast away their idols, shall the Assyrian fall by the sword of an angel, who strikes more strongly than a mighty man, yet more secretly than a mean man. God can make the stoutest heart to tremble. But if we keep up the fire of holy love and devotion in our hearts and houses, we may depend upon God to protect us and them.