Shave — Utterly spoil, as shaving takes away the hair. Hired — By Ahaz, who did hire them, 2 Kings 16:7-8. And so the prophet notes the just judgment of God, in scourging them with a rod of their own making. By — By the successive kings of the Assyrian empire, Sennacherib, Esarhaddon, and especially by Nebuchadnezzar. The head — By these metaphorical expressions he signifies the total destruction of their state, from head to foot, from the highest to the lowest.
Related Commentaries of Isaiah 7:20
Isaiah 7:20
20 In the same day shall the Lord shave with a razor that is hired, namely, by them beyond the river, by the king of Assyria, the head, and the hair of the feet: and it shall also consume the beard.