Avraham Jr. by Willie Roth

(2004/5765) In this week's Parsha, the Torah says, “Eileh Toldot
Avraham; Avraham Holid Et Yitzchak,” "These are the children of
Avraham, Avraham gave birth to Yitzchak," On this Pasuk, Rashi asks why the Pasuk repeats “Avraham Holid Et Yitzchak.”
Wouldn't it be enough just to say “ViEileh Toldot Avraham”?
Rashi answers that after Hashem changed Avraham's name,
Yitzchak was born to emphasize Avraham's new name.
Additionally, Rashi says that people were saying that
Avimelech was the biological father of Yitzchak because
when Sarah was living with Avraham she was not pregnant,
but when she was with Avimelech for one night, the next
Pasuk says that Sarah was pregnant. Therefore, in order to
prevent people from making this claim, Hashem made
Yitzchak look exactly like Avraham.
Two questions can be asked on this statement of Rashi. First
of all, why are the Rabbis worried about the people who
spread false rumors? Also, if Avraham had children before
Yitzchak, and Sarah was the one who could not have
children, then why does the Pasuk focus on Avraham and not
Sarah?
In answering these questions, Rav Yosef Dov Halevi
Soloveichik explains that a parent has a responsibility of
raising a child and to pass down one’s values to the child.
This is what Avraham was trying to do. He was trying to start
the spread of monotheism in place of polytheism, something
which he was trying to pass down to his son. However, some
people felt this was impossible, and therefore, they said that
Avimelech fathered Yitzchak, meaning that Avraham would
not be able to fulfill his task, and the ideas that Avimelech
believed in, polytheism, would stay with Yitzchak. In
response, the Torah emphasizes “Avraham Holid Et
Yitzchak,” that Avraham shaped the personality of Yitzchak,
and that Avraham's ideas were passed down to him.
-Adapted from a Shiur given by Rabbi Yosef Adler at TABC. 

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