What will be their disgrace?
Radak: They thought to be honored over us through our shame. You will fill their faces with shame. They will be disgraced in front of us. It is the opposite of being honored over us.
Radak citing his father: Kalon is like "Kaluy ba'Esh" (Vayikra 2;14). Their faces will be filled with shame. The survivors will return with shame. One who is shamed, his face is [red] like fire.
Malbim: When Yisrael will begin to sing and praise Hashem, they will be filled with shame from Hashem's honor.
Why does it say "vi'Yvakshu Shimcha"?
Radak: Then they will seek Your name, for they will know that there is none other than You, and all is in Your hand, and no man has power or Gevurah to do anything, if Kel does not want.
Malbim: They will want to repent (but they will not be accepted - verse 18).
