Wherefore — Because of this impudent blasphemy. His work — Of chastising his people so long as he sees fit. Looks — His insolent words and carriage.
Related Commentaries of Isaiah 10:12
Isaiah 10:12
12 Wherefore it shall come to pass, that when the Lord hath performed his whole work upon mount Zion and on Jerusalem, I will punishc the fruit of the stout heart of the king of Assyria, and the glory of his high looks.