Ellicott's Commentary for English Readers - Isaiah 9:5
(5) For every battle of the warrior . . .—Here again the whole verse requires re-translating: “Every boot of the warrior that tramps noisily, and the cloak rolled in blood, are (i.e., shall be) for burning, (as) fuel for fire. The picture of the conquerors collecting the spoil is continued from Isaiah 9:3. The victory is decisive, and the reign of peace begins, and the weapons of war, the garments red with blood (Isaiah 63:1-3), the heavy boot that makes the earth ring with the warrior’s tread,... read more
Ellicott's Commentary for English Readers - Isaiah 9:4
(4) For thou hast broken the yoke of his burden . . .—The text comes in the Hebrew with all the emphasis of position. The yoke of his burden . . . thou hast broken. The phrase suggests a bondage like that of Egypt, where the “task-masters” (the same word as that here rendered “oppressors”) drove the people to their labours with their rods.As in the day of Midian.—The historical allusion was probably suggested by the division of spoil that had been in the prophet’s thoughts. Of all victories in... read more