Isaiah 5:27-29

(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.