Charles Ellicott Commentary Isaiah 10:18

"And he will consume the glory of his forest, and of his fruitful field, both soul and body: and it shall be as when a standard-bearer fainteth." — Isaiah 10:18 (ASV)

Both soul and body. —Literally, from the soul even to the flesh. The metaphor is for a moment dropped, and the reality is unveiled.

As when a standardbearer fainteth. —The Authorized Version represents the extremity of misery and exhaustion. The “standard-bearer” was chosen for his heroic strength and stature. When he “fainted” and gave way, what hope was there that others would survive? A more correct rendering, however, gives As a sick man pineth away.