Concerning him - i. e., “concerning Sennacherib.” 2 Kings 19:21-28 are addressed to the great Assyrian monarch himself, and are God’s reply to his proud boastings.
The virgin, the daughter of Zion, - Rather, holy eastern city, is here distinguished from Jerusalem, the western one, and is given the remarkable epithet “virgin,” which is not applied to her sister; probably because the true Zion, the city of David, had remained inviolable from David’s time, having never been entered by an enemy. Jerusalem, on the other hand, had been taken, both by Shishak 1 Kings 14:26 and by Jehoash 2 Kings 14:13. The personification of cities as females is a common figure (compare marginal references).
Hath shaken her head at thee - This was a gesture of scorn with the Hebrews (compare the marginal references; Matthew 27:39).