What is the meaning of "Yevatza"?
Radak, Malbim: He will complete, like "v'Yadav Tevatzanah" (Zecharyah 4:9).
What is Hashem's deed in Har Tziyon?
Rashi: Taking vengeance in Yisrael and some cities of Yehudah will make Bnei Tziyon and Yerushalayim fear, be humbled and repent.
Radak: He struck Melech Ashur's camp.
What is "Pri Godel Levav"?
Rashi: He increased pride about his false strength.
Radak: His evil intent bore fruits. He glorified himself, and said that he succeeded in all his ways due to his strength and Chachmah.
Malbim: It is what he did due to his pride. Hashem commanded him only "Lishlol Shalal" (6), but he destroyed great nations.
What is "Tiferes Rom Einav"?
Rashi: He glorified himself in his pride. "Rom Einav" is pride, like "Geva Einayim u'Rechav Levav" (Tehilim 101:5).
Radak: This is a repetition of "Godel Levav." It is called "Rom Einav" because haughtiness of heart is seen in the eyes - "Geva Einayim u'Rechav Levav."
Malbim: He did not want to recognize that he is only a staff in Hashem's hand.