(א) לגור שם לא להשתקע:
(1) הנה נא ידעתי BEHOLD NOW I KNOW — The Midrashic explanation is: Until now he had not perceived her beauty owing to the extreme modesty of both of them; now, however, through this event, he became cognisant of it (Midrash Tanchuma, Lech Lecha 5). Another explanation: Usually, because of the exertion of travelling a person becomes uncomely, but she had retained her beauty (Genesis Rabbah 40:4). Still, the real sense of the text is this: Behold, now the time has come when I am anxious because of thy beauty. I have long known that thou art fair of appearance: but now we are travelling among repulsive people, brethren of the Ethiopians (Kushim), who have never been accustomed to see a beautiful woman. A similar example is, (Genesis 19:2) “Behold, now, my lords, turn aside I pray you.”).