With iron; or, as with iron, as the trees of the forest are cut down by instruments of iron.
And Lebanon; or, his Lebanon, the pronoun being oft understood in the Hebrew text; the Assyrian army, which being before compared to a forest or wood, and being called his Carmel in the Hebrew text, Isa_10:18, may very fitly, upon the same ground, be called his Lebanon here; especially considering that the king of Assyria is called a cedar of Lebanon, Eze_31:3.