Shiur from Rabbi Elimelech Kohn Ztl on פרשת בראשית. Discussed: • The Kli Yakir explains what it means that Kayin offered his Korbon, מקץ ימים, at the end of days. What was the motivation behind Kayin's Korbon, and why did Hashem reject his Korbon? • Understanding the essential concept of Korbonos. If Hashem doesn't "need" our gifts, why do we offer Korbonos? Furthermore, what is the significance of מבכרות צאנו, the first of Hevel's cattle; does it really matter to Hashem whether someone offers the last of their crop instead of Bikkurim? What is the difference between an animal offering and one of flax? • Understanding the Orach Chaim who explains why Kayin deserved the incredible promise from Hashem that he will be protected for seven generations. Also discussed, the idea of Bitachon based on the Segulah Niflah from the Nefesh Hachaim.