Our sages examine a Mishnah which states that we need not prevent children from blowing a shofar on Rosh Hashanah, and could even encourage them to practice. The Gemara notes that this teaching implies that we might discourage women from blowing a shofar, but cites another tradition teaching that we do not prevent women or children from sounding the shofar.
Rashi comments that the first opinion holds that women are entirely exempt from time dependent positive commandments (Mitzvot aseh sh’hazman grama), so we would discourage them from performing the commandment.
Women are indeed required to observe all commandments that are in the negative, “thou shalt not…”, for example to refrain from eaten leavened items during Passover. We learn this from “A man or woman, when they commit any of the sins of men, to commit a trespass against the Lord, and that soul shall be guilty” (Numbers 5:6). Men and women have equal agency in Jewish law, both are responsible and liable to be punished for their decisions.
The Bible exempts women from positive commands, “thou shall…”, that are done at a specific time (though there are exceptions such as eating Matzah on Passover). Women are not exempted because they are not intrinsically able to do these actions, but because they are responsible for the entire household. A woman may be busy with her children or the fire at that moment it is time to do the mitzvah. It would not be fair or efficient to ask her to stop her important work.
God Himself understands and accounts for the old saying “a woman’s work is never done”. Men are expected to ignore whatever is going on in their lives to perform Divine commands. Women on the other hand are already doing God’s will through building a healthy home and family and should not be required to interrupt.
In addition, women tend to work with primarily with other people while men usually work with physical things, tools, and animals. A man can drop his tools or tie up his horses and go focus on what God requires. You cannot ask a woman to drop her children, they won’t leave her alone.
The Gemara implies women could voluntarily perform a Mitzvah, and Tosafot here explains that there are sources in many areas of the Talmud for women being allowed to perform a commandment, even when they are not required.
Jewish law rules that women can indeed perform a time bound commandment even though they are not obligated. Ashkenazi (European origin) women also recite the blessing before the commandment (see Shulchan Aruch Orach Chayim 589:6).
Sefardi women can perform the Mitzvot in question but do not make a blessing. Some explain that a woman saying the blessing, which states “Blessed are You…who commanded us to…” would appear to be lying, as she is not actually required to do this act. It is important to distinguish between what you are obligated to do and what is voluntary.
It is inspiring that our women are zealous to perform the “optional” commandments like hearing the shofar, showing their love for God’s will. For more details see Women and Mitzvot in Judaism
This contrast in obligation gives us insight into our psychological nature for both men and women. Rav Yosef, who was blind, used to say that he would throw a party for anyone who could prove the law was that a blind man was not obligated in the time bound commandments. His assumption was that it was better to not be required to do something but to do it voluntarily anyway.
However, the sages told him that in fact it is a higher level to be required to act and to act accordingly. Rav Yosef began to say that he would throw a party for anyone who could prove the law was that a blind man was indeed obligated in the time bound commandments
When we must get certain tasks done for your mission, we often feel a serious temptation to put them off. It is often easier to do extra things that are a distraction or work toward someone else’s mission. Being obligated to do something creates internal resistance.
Volunteering makes us feel good, as if we are going above and beyond. This is often true, but sometimes accomplishing something extra takes away from our actual obligations.
Jewish wisdom does not discourage anyone from volunteering, but reminds us that we first must finish what is actually required of us. We are also try to remember what is an actual Biblical commandment, versus a Rabbinical enactment versus a custom.