וְנִקַּ֛ף סִֽבְכֵ֥י הַיַּ֖עַר בַּבַּרְזֶ֑ל וְהַלְּבָנ֖וֹן בְּאַדִּ֥יר יִפּֽוֹל׃ (ס)
And He shall cut down the thickets of the forest with iron, And Lebanon shall fall by a mighty one.
Read kabbalistic (mystical) interpretation of Isaiah 10:34: and classical mystical sources.