Why did God decree that the descendants of Avraham will be exiled to Egypt? Shmuel believes Avraham's sin was a lack of emunah, while Rabbi Abahu and Rabbi Yohanan said the punishment was given due to another sin. This controversy mirrors their criticism of Avraham in the War of the Kings, and the nature and purpose of the Covenant between the Pieces.

Avraham - The War of the Kings
The Decree of Enslavement in Egypt
Enlisting Torah Students into the Army
Limitation of Power of Miracles
Covenant Between the Pieces
Length of exile in Egypt