According to Jewish tradition, Michal, the daughter of Saul and David's first wife, accepted the commandments of tefillin and tzitzit although these requirements applied only to men. Many of the mitzvot that applied to men applied to women as well; however, women were usually exempt from positive time-bound commandments (requirements to perform duty at a specific time, as opposed to requirements to perform duty at any time or requirements to abstain from an act). There are two prominent theories about why this is: pragmatism (because the role of women in household duties consumes their time) and spirituality (because according to some traditions, "women have superior inherent spiritual wisdom", known as bina, that makes them less dependent than men on the performance of timely religious practices to retain a strong spiritual connection to God).