If being a rabbi was just a matter of long beards and black suits, then ZZ Top could have opened up a yeshiva. A rabbi is a Jewish spiritual leader who is a scholar of Torah laws and customs.
The word rabbi comes from the Hebrew raba, meaning "great" or "revered," as seen in the Hebrew expressions saba raba (great grandfather) or hatzlacha raba (a blessing for much success). Rabbis might serve one or more of a number of roles within a Jewish community, including motivational speakers, Torah legal authorities, teachers, mentors, therapists, or as mohels who can perform ritual circumcisions.
