Bar and Bat Mitzvah to the event. However, this does not delay the onset of rights and responsibilities of being a Jewish adult which comes about strictly by virtue of age. The obligation to lay tefillin begins when a boy reaches bar mitzvah age. The common custom is for the bar mitzvah boy to begin putting on tefillin one to three months before his bar mitzvah. This way, by the time he is obligated in the commandment, he will already know how to fulfill it properly. The first mention of a party associated with a synagogue bar mitzvah was in the 13th century, so
Mitzvah The collection is part of the larger Jewish law or "halakha". The opinions of the Talmudic rabbis are divided between those who seek the purpose of the "mitzvot" and those who do not question them. The latter argue that if the reason for each "mitzvah" could be determined, people might try to achieve what they see as the purpose of the "mitzvah", without actually performing the "mitzvah" itself ("lishmah"), which would become self-defeating. The former believe that if people were to understand the reason and the purpose for each "mitzvah", it would actually help them to observe and perform the