Arcana Coelestia # 3027
3027. 'And you shall take a wife for my son Isaac' means that from this came the affection for truth which was to be joined to the affection for good belonging to the Rational. This is clear from what has been stated above in 3024.
Genesis 12:10-12
10
There was a famine in the land. Abram went down into Egypt to live as a foreigner there, for the famine was severe in the land.
11
It happened, when he had come near to enter Egypt, that he said to Sarai his wife, "See now, I know that you are a beautiful woman to look at.
12
It will happen, when the Egyptians will see you, that they will say, 'This is his wife.' They will kill me, but they will save you alive.
