To whom was this said?
Rashi: It is said to Hashem.
Radak: It is said to Melech ha'Mashi'ach.
Malbim: It was said to the king [who married a woman].
Why does it say "Azkirah Shimcha b'Chol Dor va'Dor"?
Radak: In every generation we mention Mashi'ach's name and look forward to his coming.
Malbim: Your good name will remain for generations.
Malbim (Derech ha'Muskal): You will be among those who bring merit to the Rabim, who are like stars (Daniel 12:3), which illuminate forever.
What is the meaning of "Amim Yehoducha"?
Radak: He will have unprecedented kingship and grandeur. All nations will admit that he is king over them. This is like "Yehudah Atah Yoducha Achecha" (Bereishis 49:8).