Congregation Sons of Israel at Benson

At a minimum, a synagogue is a beit tefilah, a house of prayer. It is the place where Jews come together for community prayer services. Jews can satisfy the obligations of daily prayer by praying anywhere; however, there are certain prayers that can only be said in the presence of a minyan (a quorum of 10 adult men), and tradition teaches that there is more merit to praying with a group than there is in praying alone. The sanctity of the synagogue for this purpose is second only to The Temple. In fact, in rabbinical literature, the synagogue is sometimes referred to as the "little Temple."

A synagogue is usually also a beit midrash, a house of study. Contrary to popular belief, Jewish education does not end at the age of bar mitzvah. For the observant Jew, the study of sacred texts is a life-long task. Thus, a synagogue normally has a well-stocked library of sacred Jewish texts for members of the community to study. It is also the place where children receive their basic religious education.

Most synagogues also have a social hall for religious and non-religious activities. The synagogue often functions as a sort of town hall where matters of importance to the community can be discussed.