First, not all rabbis teach. Of those who do, some teach general religion, others specific areas of halacha (Jewish law), others teach Talmud, some teach Kabbalah, and some teach completely secular subjects such as English, Physics, Math, History, etc.
For an Orthodox Rabbi, they include all the beliefs, principles, laws and customs of Judaism; the Hebrew Bible, the Talmud, the Code of Jewish Law, etc. See also:The basic beliefs of Judaism
Rabbis preach from doctrines of the Talmud. See the attached Related Link.
Intensive Torah-study.
An Orthodox rabbi who is trained in kosher supervision can help
Originally, it was a rabbi, a rabbi, and a rabbi walk into a bar. . .
Rabbis. Here are a few examples from the Talmud. Rabbi Yochanan ben Zakkai, Rabbi Yonatan ben Uziel, Chanina ben Dosa, Bava ben Buta, Shimon ben Hillel, Rabbi Eliezer, Rabbi Yehoshua, Rabbi Yossi haKohen, Rabbi Shimon ben Netanel, Rabbi Elazar ben Arakh, Rabbi Yochanan ben Nuri, Rabbi Akiva, Rabbi Nechuniah, Rabbi Nachum Gamzu, Rabbi Yossi Glili, Rabbi Honi Me'agel, Rabbi Abba Shaul, and hundreds of others. Each of these had large groups of disciples.
Rabbi Aaron Teitelbaum and Rabbi Zalman Leib Teitelbaum
The rabbi of France
A rabbi is a teacher.
A Chief Rabbi
Rabb Rabbi The Rabbi also Engineer Rabbi
Rabbi Yochanan ben Zakkai, Rabbi Yonatan ben Uziel, Chanina ben Dosa, Bava ben Buta, Shimon ben Hillel, Rabbi Eliezer, Rabbi Yehoshua, Rabbi Yossi haKohen, Rabbi Shimon ben Netanel, Rabbi Elazar ben Arakh, Rabbi Yochanan ben Nuri, Rabbi Akiva, Rabbi Nechuniah, Rabbi Nachum Gamzu, Rabbi Yossi Glili, Rabbi Honi Me'agel, Rabbi Abba Shaul, and hundreds of others. Each of these had large groups of disciples.
The Rabbi visited the factory in order to ascertain its fitness for Kashrut (Kosher) certification.
A Rabbi is very significant.
The rabbi's private office