Rashi explains that if this murderer were a Kohen who had intended to perform the service in the Bais Hamikdash, he may be taken away to his execution. The altar does not serve as a place of refuge for those who deserve punishment. Horav Moshe Shternbuch Shlita offers a unique homiletic approach to understanding this pasuk. One should not think that by performing mitzvos he can commute the punishment he merits for the various sins he has committed. Just as a sin does not have the power to extinguish a mitzvah, likewise, a mitzvah cannot erase a sin. The only way that one can effect penance for his transgressions is through repentance and contrition. This is the message of this pasuk: “From my altar, take him for execution,” the mitzvah of performing the service in the Bais Hamikdash does not atone for the sin of murder. A Kohen who transgresses must receive his due punishment despite his exalted station in life. This is a powerful message for he who foolishly thinks that he can follow the urging of his evil inclination, as long as he balances these misdeeds with mitzvos. Indeed, he will be rewarded for his mitzvos, but he will still be held responsible for his aveiros.
