Yom Kippur

As always, any of these restrictions can be lifted where a threat to life or health is involved. In fact, children under the age of nine and women in childbirth (from the time labor begins until three days after birth) are not permitted to fast, even if they want to. Older children and women from the third to the seventh day after childbirth are permitted to fast, but are permitted to break the fast if they feel the need to do so. People with other illnesses should consult a physician and a rabbi for advice.

Most of the holiday is spent in the synagogue, in prayer. In Orthodox synagogues, services begin early in the morning (8 or 9 AM) and continue until about 3 PM. People then usually go home for an afternoon nap and return around 5 or 6 PM for the afternoon and evening services, which continue until nightfall. The services end at nightfall, with the blowing of the tekiah gedolah, a long blast on the shofar. See Rosh Hashanah for more about the shofar and its characteristic blasts.

It is customary to wear white on the holiday, which symbolizes purity and calls to mind the promise that our sins shall be made as white as snow (Is. 1:18). Some people wear a kittel, the white robe in which the dead are buried.
Yom Kippur Liturgy

See also Jewish Liturgy generally.

The liturgy for Yom Kippur is much more extensive than for any other day of the year. Liturgical changes are so far-reaching that a separate, special prayer book for Yom Kippur and Rosh Hashanah. This prayer book is called the machzor.

The evening service that begins Yom Kippur is commonly known as Kol Nidre, named for the prayer that begins the service. “Kol nidre” means “all vows,” and in this prayer, we ask G-d to annul all personal vows we may make in the next year. It refers only to vows between the person making them and G-d, such as “If I pass this test, I’ll pray every day for the next 6 months!” Click the speaker to hear a portion of the traditional tune for this prayer. Speaker

This prayer has often been held up by anti-Semites as proof that Jews are untrustworthy (we do not keep our vows), and for this reason the Reform movement removed it from the liturgy for a while. In fact, the reverse is true: we make this prayer because we take vows so seriously that we consider ourselves bound even if we make the vows under duress or in times of stress when we are not thinking straight. This prayer gave comfort to those who were converted to Christianity by torture in various inquisitions, yet felt unable to break their vow to follow Christianity. In recognition of this history, the Reform movement restored this prayer to its liturgy.

There are many additions to the regular liturgy (there would have to be, to get such a long service (grin). Perhaps the most important addition is the confession of the sins of the community, which is inserted into the Shemoneh Esrei (Amidah) prayer. Note that all sins are confessed in the plural (we have done this, we have done that), emphasizing communal responsibility for sins.

There are two basic parts of this confession: Ashamnu, a shorter, more general list (we have been treasonable, we have been aggressive, we have been slanderous…), and Al Chet, a longer and more specific list (for the sin we sinned before you forcibly or willingly, and for the sin we sinned before you by acting callously…) Frequent petitions for forgiveness are interspersed in these prayers. There’s also a catch-all confession: “Forgive us the breach of positive commands and negative commands, whether or not they involve an act, whether or not they are known to us.”

It is interesting to note that these confessions do not specifically address the kinds of ritual sins that some people think are the be-all-and-end-all of Judaism. There is no “for the sin we have sinned before you by eating pork, and for the sin we have sinned against you by driving on Shabbat” (though obviously these are implicitly included in the catch-all). The vast majority of the sins enumerated involve mistreatment of other people, most of them by speech (offensive speech, scoffing, slander, talebearing, and swearing falsely, to name a few). These all come into the category of sin known as “lashon ha-ra” (lit: the evil tongue), which is considered a very serious sin in Judaism.