Who are the Jewish leaders in worship?
There are three general leaders in Jewish Worship.
Rabbi: This is a person trained in Jewish law, ritual, and tradition and ordained for leadership of a Jewish congregation (especially one serving as chief religious official of a synagogue). The Rabbi will often give the D'var Torah or Sermon to the Congregation and serve as a general spiritual leader.
Hazan/Cantor: The Hazan is responsible for leading the communal
praying by singing the prayers. Any knowledgeable congregant may
serve as a temporary Hazan, but most synagogues have a permanent
Hazan, at least on Sabbath and festivals.
Ba'al Qoreh: This person specifically reads the Torah in front
of the congregation at the certain times of the service where it is
possible. The function of Ba'al Qoreh is often merged into the
Rabbi's or Hazan's duties.
The synagogue. The importance of prayer: Prayer services are part of halakha (Jewish law) and tradition (Talmud, Berakhot 26a); and the Torah records several prayers of our forefathers. Prayer is an important form of communicating with God, and maintaining a relationship with Him; and it is also good for the health of the soul, to which Torah, prayer and religious observances are a form of nourishment. Judaism sees it as centrally important to thank God…