This week's portion contains the mitzvah to confess one's sins before G-d. As the Rambam writes in his Sefer HaMitzvos, "We were commanded to confess our sins before G-d when we repent." Interestingly, though, the Rambam does not count repentance itself as a mitzvah. What does it mean that teshuvah is not a mitzvah?
Based on Likkutei Sichos, vol. 38, pp. 18-25.