“Then Isaiah the son of Amoz sent to Hezekiah, saying, Thus saith the LORD God of Israel, That which thou hast prayed to me against Sennacherib king of Assyria I have heard.”
King James Version (KJV)
19:21 Virgin - So he calls Zion, or Jerusalem; because she was pure in good measure from that gross idolatry wherewith other people were defiled, which is called spiritual whoredom: and to signify, that God would defend her from the rape which Sennacherib intended to commit upon her with no less care than parents do their virgin daughters from those who seek to force and deflower them.