1)
How did Hashem prevent their eradication?
1.
Malbim: He went with them to Galus to oversee them - "v'Af Gam Zos bi'Hyosam b'Eretz Oyveihem Lo Me'astim... Lechalosam Lehafer Brisi Itam." He guards the Bris and Chesed that He promised to the Avos - "v'Zacharti Es Brisi Yakov..."


