Toldot

The parshah begins with a story out of the life of Yitzchok and Rivkah. It tells us that they – who had gotten married in such a wonderful and miraculous way through the hands of Hashem – had a difficulty with having children. At the time, Yitzchak was 40 years old, and his bride, Rivka, was a young girl. Yitzchak understood he wasn’t going to have children right away, but then “right away” became a longer period of time. The Torah tells us “Yitzchak pleaded with Hashem” because his wife was barren.

“These are the children of Yitzchak ben Avraham. Avraham fathered Yitzchak” (Bereishis 25:19). The question is, after the Torah mentions that Yitzchak was ben Avraham, why does it need to say after that Avraham fathered Yitzchak? If I tell you Yitzchak is ben Avraham, most geniuses, even simple folks like me and you, could figure out that Avraham fathered Yitzchak.