Ge 12:10 Now there was a famine in the land, and Abram went down to Egypt to dwell there, for the famine was severe in the land.
11 And it came to pass, when he was close to entering Egypt, that he said to Sarai his wife, "Indeed I know that you are a woman of beautiful countenance.
12 "Therefore it will happen, when the Egyptians see you, that they will say, 'This is his wife'; and they will kill me, but they will let you live.
13 "Please say you are my sister, that it may be well with me for your sake, and that I may live because of you."
14 So it was, when Abram came into Egypt, that the Egyptians saw the woman, that she was very beautiful.
15 The princes of Pharaoh also saw her and commended her to Pharaoh. And the woman was taken to Pharaoh's house.
16 He treated Abram well for her sake. He had sheep, oxen, male donkeys, male and female servants, female donkeys, and camels.
17 But the LORD plagued Pharaoh and his house with great plagues because of Sarai, Abram's wife.
18 And Pharaoh called Abram and said, "What is this you have done to me? Why did you not tell me that she was your wife?
19 "Why did you say, 'She is my sister'? I might have taken her as my wife. Now therefore, here is your wife; take her and go your way."
20 So Pharaoh commanded his men concerning him; and they sent him away, with his wife and all that he had.
Here Moses shows his original Israelite readers Abraham's lapse of faith and God's faithfulness to His promises to Abraham in spite of it all.
God sent a test for Abraham and he failed. Instead of staying in the land, he sojourned to Egypt. Instead of telling Pharaoh the whole truth, he deceived him. Abraham failed to trust in God's provision and protection. So he left the Promise Land and lied in Egypt.
Moses is showing the similarity between Abraham and Israel. Famine drove Abraham to leave the Promise Land to Egypt just as Jacob and his sons were driven by a famine to Egypt.
But just as God delivered Abraham from Egypt with wealth and riches from Egypt, so did God delivered Israel from Egypt with wealth and riches from the Egyptians.
God's faithfulness ensures the fulfillment of God's promises to Israel.
