1)
What is "Za'akas Chovelayich"?
1.
Malbim: Due to your officers' screams, the Migrashos around the city will tremble. I.e. all boats, which are like a Migrash around this mighty boat [will tremble]. This teaches about all islands in the sea.
2)
What are "Migroshos"?
1.
Rashi: This is like "Migrash la'Ir" (48:17).
2.
Radak: This is like Migrashim (surrounding areas). This is an exaggeration ? the Migrashim on the dry land will tremble due to the voice of your screams when you are broken.
