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
Confirmation interpretations, the Eastern churches therefore view confirmation/Chrismation as a repeatable sacrament. According to others, the rite is understood as "part of a process of reconciliation, rather than as a reiteration of post-baptismal chrismation". In the late 1800s Reform Judaism developed a separate ceremony, called confirmation, loosely modeled on Christian Confirmation ceremonies. This occurred because, at the time, Reform Jews believed that it was inappropriate for Bar/Bat mitzvah age children to be considered mature enough to understand what it means to be religious. It was held that children of this age were not responsible enough to understand what it means to