7:20 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 {t} feet: and it shall also consume the beard.
{t} That is, that which is from the belly downward meaning that he would destroy both great and small.
7:20 Shave - Utterly spoil, as shaving takes away the hair. Hired - By Ahaz, who did hire them, 2Kings 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.
7:17-25 Let those who will not believe the promises of God, expect to hear the alarms of his threatenings; for who can resist or escape his judgments? The Lord shall sweep all away; and whomsoever he employs in any service for him, he will pay. All speaks a sad change of the face of that pleasant land. But what melancholy change is there, which sin will not make with a people? Agriculture would cease. Sorrows of every kind will come upon all who neglect the great salvation. If we remain unfruitful under the means of grace, the Lord will say, Let no fruit grow on thee henceforth for ever.