Genesis 20:2

He said to the king, and to all others who made inquiry, as it was his custom, whenever he came into a strange land, ver. 13. He was encouraged to do this, by the protection which God had shewn him in Egypt. --- Took her, against her will, as Pharao had done. (Haydock) --- Though she was ninety years old, and with child, her beauty was still extraordinary, the Rabbin think miraculous. At that time people lived above 120 years; so that at the age of ninety, she would only be about as near the end of her life as our women are at forty; and we often see people sufficiently attracting at that age. (Calmet)