Zevachim 100 - 106
Becoming a Kohen
“Rabbi Elazar said in the name of Rabbi Chanina: Pinchas did not become a kohen until he killed Zimri.” (Bamidbar 25:13)
“Rav Ashi said: Pinchas did not become a kohen until he made peace between the tribes.” (Yehoshua 22:30)
When did Pinchas, the grandson of Aharon HaKohen, become a kohen? Wasn’t he born into a kohanic family? Not really. Since his birth occurred before
So, when did Pinchas become a kohen? There are two opinions in our gemara. Rabbi Elazar said in the name of Rabbi Chanina that Pinchas became a kohen after killing Zimri, the Prince of the Tribe of Shimon. Zimri had been publicly sinning in a very immoral manner. This heroic act by Pinchas caused a terrible plague to end, and earned him the status of kohen, as the Torah states regarding Pinchas: “And it shall be for him and his offspring after him a covenant of eternal kehuna.” (Bamidbar 25:13)
Rav Ashi, however, teaches that Pinchas did not become a kohen until later. Although, after what he did to Zimri he had received a blessing to be a kohen, and, in theory, he could have completed the process to become a kohen immediately, there was a delay in the process. Since he had killed a Prince of Israel, there was dissent from the people to his becoming a kohen at that initial time. But it was only years later, when he acted as a great peacemaker in preventing a civil war between the tribes (see Yehoshua 22:30), did the people consent to finalizing his status of becoming a kohen — a process which involved being anointed, wearing the kohanic garments, and bringing the special Mincha offering that every new kohen was required to bring at his inauguration. (Tosefot)
- Zevachim 101b