We learn that Abraham told his wife to say she was his sister because he was counting on her merit; whoever merits a prudent wife merits everything. Abraham saw an angel who said he would protect her, so he had no fear for his wife but some fear for himself. Sarai ordered the angel to strike Pharaoh ten times with ten plagues. Rabbi Aba talks about the difference between the redemption from Egypt, which occurred on one day from one king and one kingdom, and the final redemption that will be from all the kings of the world - everyone shall acknowledge God's reign and glorify Him. Then the Patriarchs will be resurrected with joy, and they will see the redemption of their children as before.