“A nd Avraham took another wife and her name was Keturah.” (Bereishis 25:1)
The Gemara (Avodah Zarah 25a) explains that Bereishis is called Sefer Hayashar because it’s the book of the straight ones: Avraham Yitzchak and Yaakov. The entire sefer relates the actions of the Avos to teach us the straight paths upon which we should pattern our lives.
Every single person is obligated to say “When will my actions reach the level of Avraham Yitzchak and Yaakov?” (Tana Deve Eliyahu 25)
Yet how can a simple human think he can reach the actions of the forefathers whose exalted levels were higher than the angels? And why are we obligated to actually say this? (The Slonimer Rebbe ztz”l Nesivos Shalom)