The Midrash relates that after this incident Kayin met his father, Adam, who inquired about his form of punishment. Kayin responded, “I performed repentance and came to an understanding (compromise) with my Maker.” This Midrash goes on to imply that Kayin was the first one to have performed the mitzvah of Teshuva. This is inconsistent, however, with a later Midrash in Parashas Vayeshev in which chazal relate that Hashem stated that Reuven is considered to have been the first one to have repented properly. In order to respond to this question, we must first analyze Kayin’s repentance. The words that…
