1)
Why did Miriam offer to summon a wet-nurse specifically from the Ivriyos?
1.
Rashi: The princess had indeed brought him around to many Egyptian women to nurse, but Moshe refused to feed from their breasts. 1
1
Gur Aryeh: This is derived because why would they be searching for a nursing woman specifically among the Hebrews, and not among the Egyptians? It must be that they were faced with no choice.
2)
Why did Moshe refuse to feed from an Egyptian wet-nurse?
1.
Rashi (citing Sotah 5b): Because he was destined to speak with the Shechinah. See Torah Temimah.
2.
Seforno: Because they were from a different cultural background.
