והיתה לי ולזרעו אחריו ברית כהונת עולם
Up until that time, only Aharon HaKohen and his sons had been inducted into the Priesthood. Any additional offspring who would be born into the family would be “born Kohanim.” Pinchas was already born; thus, he was not to be included in the Priesthood. As a result of his decisive act of zealousness, he was granted a place in the Priesthood, a place for himself and his offspring. The Zohar HaKadosh questions Pinchas’ induction into the Priesthood, since he had just killed a Jew. We have a rule that a Kohen who takes a life is not permitted to serve….