פּירוש אויף בראשית 20:2

ויאמר אברהם AND ABRAHAM SAID — This time he did not ask her consent but forcibly and against her inclination he stated that she was his sister, because she had already been taken once to Pharaoh’s house on account of this (Genesis Rabbah 52:4).

ויאמר אברהם אל אשתו, “Avraham said to his wife:” when speaking in her presence he said that she was his sister, while she kept quiet. [the word is considered here as the same as “על,” about; Ed.]

AND ABRAHAM SAID OF SARAH HIS WIFE, SHE IS MY SISTER. This was not like what happened in Egypt. There, when they entered the land, it is said that the Egyptians saw that the woman was beautiful, and they praised her to the lords and to Pharaoh,²⁷⁵Above, 12:14-15. as they were an immoral people but this king was perfect and upright, and his people were likewise good. However Abraham suspected them, and he told everyone that she was his sister.