That comparison misses the point.
A rabbi is historically a teacher and interpreter of Jewish tradition, especially Jewish law. In modern life the role often includes preaching, counseling, public leadership, and institution-building too. The office has expanded, but its core still begins with learning.
A rabbi is first a teacher
My Jewish Learning notes that the Hebrew term rabbi literally means "my teacher" or "my master." Britannica defines a rabbi as someone qualified through study of the Hebrew Bible and the Talmud to serve as a spiritual leader and religious teacher.
Those two definitions fit together. The rabbi is not sacred because of a special priestly status. The rabbi earns authority through learning, training, and recognition.
That is the first distinction worth keeping clear.
Rabbis are not priests
In ancient Judaism, priestly roles belonged to the kohanim, descendants of Aaron, whose central work was tied to the Temple cult. Rabbis emerged in a different lane. Their authority comes from teaching, adjudication, and interpretation rather than sacrifice.
This matters because it explains why rabbis can look so different across time and place. Once the Temple no longer stood, Jewish continuity depended less on sacrifice and more on study, law, prayer, and communal organization. Rabbis became central to that world.
The classic rabbinic role was legal and educational
Britannica emphasizes that rabbinic qualification historically involved serious study of the Bible and Talmud. My Jewish Learning adds that, for much of Jewish history, the primary qualification for being called a rabbi was enough learning to render decisions in Jewish law.
That older model still matters even when modern rabbis spend more time on administration or pastoral work.
A rabbi traditionally teaches Torah, answers legal and ritual questions, guides communal practice, and helps sustain literacy in the tradition.
Modern rabbis do more than the classical model required
In contemporary Jewish life, many rabbis also function as pastors, public intellectuals, chaplains, organizational leaders, and educators for people with very different levels of Jewish knowledge.
They may officiate weddings and funerals, supervise conversion, teach adult education, counsel families in crisis, manage staff, raise money, and represent a congregation in public life.
That expansion reflects social reality. Modern synagogues and Jewish institutions ask more from leaders than classical rabbinic courts or study houses did.
Different Jewish movements train rabbis differently
The title rabbi still means something shared, but not something identical.
Orthodox, Conservative, Reform, Reconstructionist, and other Jewish institutions ordain rabbis through different seminaries, with different expectations about halakha, gender, liturgy, and communal authority. Some communities expect a rabbi to issue binding legal rulings. Others treat the rabbi more as a teacher, preacher, and guide in a pluralistic setting.
So when someone asks what a rabbi does, the accurate answer depends partly on which Jewish world they are asking about.
Why the role still matters
The rabbi remains important because Judaism is a learned tradition. Texts need interpreters. Communities need teachers. Ritual life needs people who can connect inherited forms to present needs without pretending the past speaks automatically.
That does not mean every Jewish community centers the rabbi in the same way. Some are more lay-led, some more clerically shaped, and some more institutionally diffuse. But across those differences, the rabbi still marks a public commitment to transmitting Jewish learning and communal responsibility.
The shortest accurate answer
A rabbi is a Jewish teacher and religious leader whose authority traditionally comes from study and interpretation rather than priestly status.
That role may include legal guidance, preaching, pastoral care, and institutional leadership, but the center of it is still Torah, learning, and communal responsibility.