Why did Miriam mention offer to summon a wet-nurse specifically from the Ivriyos?
Rashi: Because Moshe refused to feed from the breasts of the Egyptian women that Bisyah summoned. 1
Because he was destined to speak with the Shechinah (Rashi, citing Sotah, 5b).
Why did Moshe refuse to feed from an Egyptian wet-nurse?
Rashi: Because he was destined to speak with the Shechinah.
Seforno: Because they were from a different cultural background.
רש"י: שהחזירתו על מצריות הרבה: מנין דרשו זאת?
גור אריה: אם לא כן- למה חיפשה דוקא מהעבריות?!