(27-29) None shall be weary . . .--The three verses paint the progress of the invading army. Unresting, unhasting, in perfect order, they march onward. They do not loosen their girdle for repose. The latchet or thong which fastens their sandals is not "broken" or untied. The light-armed troops are there, probably the Medes and Elamites in the Assyrian army (Isaiah 13:18). The chariots of the Assyrians themselves are there, sweeping onward like a tempest. Their unshod hoofs (the practice of shoeing horses was unknown in the ancient East) are hard as flint. Comp. Homer's epithet of "brazen-footed" (Il. v. 329); and Amos 6:12. The battle-cry is heard far off like the roaring of lions.

Verse 27. - None shall be weary nor stumble. None shall lag behind on the march, none fall and be disabled. None shall slumber. They shall scarcely give themselves time for necessary repose.

5:24-30 Let not any expect to live easily who live wickedly. Sin weakens the strength, the root of a people; it defaces the beauty, the blossoms of a people. When God's word is despised, and his law cast away, what can men expect but that God should utterly abandon them? When God comes forth in wrath, the hills tremble, fear seizes even great men. When God designs the ruin of a provoking people, he can find instruments to be employed in it, as he sent for the Chaldeans, and afterwards the Romans, to destroy the Jews. Those who would not hear the voice of God speaking by his prophets, shall hear the voice of their enemies roaring against them. Let the distressed look which way they will, all appears dismal. If God frowns upon us, how can any creature smile? Let us diligently seek the well-grounded assurance, that when all earthly helps and comforts shall fail, God himself will be the strength of our hearts, and our portion for ever.None shall be weary nor stumble among them,.... Though they should come from far, and make long marches, yet none should be weary by the way, but go on with great cheerfulness and strength; and though they should make such haste, they should not stumble at any thing by the way, nor rush one against another, but proceed with great order in their several ranks:

none shall slumber nor sleep; day nor night, in any fixed stated times, as men usually do:

neither shall the girdle of their loins be loosed; with which they should be girded both for strength and greater expedition; this they should not unloose, in order to lie down and take sleep:

nor the latchet of their shoes be broken, which might hinder their journey; they never plucked off their shoes: all the expressions show their indefatigableness, diligence, intenseness, and resolution, and the good order observed by them; see Joel 2:7.