Are Old Testament Jewish Priests the same as today’s Rabbis? Is there a lineage?
If not, what’s the difference, and who was the last Priest and first Rabbi?
A priest in any religion is a person designated to offer sacrifice. In Judaism from the time of Moses the priests were Levites, the descendants of Levi on of the sons of Jacob or Istrael. When Moses came down from the mountain with the ten commandments and the people were worshipping the golden calf, Moses asked who would defend God and the Levites responded and killed the idol worshippers. Moses established animal sacrifice in the practice of the Jewish religion designating the Levites as priests, the men who performed the temple sacrifice. The Romans put an end to the temple sacrifice when the Jews rebelled against the empire and the Romans destroyed the Temple in Jerusalem and scattered the Jews in the diaspora. The Levitical priesthood essentially disappeared, although there remaiin descendants of Levi among Jews today.
A rabbi is a teacher. Jesus was called rabbi. Rabbinical Judaism is what remains of Judaism. The practice of the religion is limited to what takes place in the synagogues also call temples, reading of the Torah, barmitzvahs, keeping kosher households or not, keeping the sabbath at home or not, circumcising males. All this varies in degree from family to family and from orthodox to reformed branches of Judaism.
Since Jewishness is inherited even atheists are considered Jews. There is no requirement of religious belief or practice, or to recognize the authority of a rabbi or rabbis, or to be taught by any rabbi. Jews do not have to follow any faith belief that embraces the stories handed down from the ancient past as true, to be considered Jews in good standing, or a good Jew. Nevertheless, among Jews who do maintain some form of religious practices of the past established by Moses, rabbis are essential to their congregations. They perform ceremonies or maybe act as master of ceremonies and teach from the torah in the synagogues.
In a sense this is like Protestantism with ministers, but no priests or priestly sacrifice. Ministers teach, organize Bible studies and preside over weddings, funerals or different functions, but what they believe varies greatly.