Yom Kippur | Holiday, Purpose, Meaning, & Facts - Britannica

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• Introduction & Top Questions
• Biblical sources and Diasporic meanings
  • Fates determined
• Rules and prayers

References & Edit History Quick Facts & Related Topics Images & Videos Related Questions

• What is Yom Kippur?
• How is Yom Kippur observed?
• What are the rules of Yom Kippur?
• What are the High Holy Days, and how is Yom Kippur connected with Rosh Hashanah?
• What do you say to someone observing Yom Kippur?

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• International Fellowship of Christians and Jews - What Is Yom Kippur?
• ABC listen - God Forbid - Yom Kippur, the day of atonement
• International Council of Jewish Women - Yom Kippur: A Day of Joy and Intimacy
• Reform Judaism - Yom Kippur
• JewishEncyclopedia.com - Day of Atonement
• Jewish Virtual Library - Yom Kippur: History and Overview
• The Ohio State University - Origins - Yom Kippur: A First Step to Peace

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Yom Kippur Judaism Ask Anything Homework Help Also known as: Day of Atonement, Yom ha-kippurim Written and fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated Dec. 5, 2025 •History Britannica AI Ask Anything Homework Help Table of Contents Table of Contents Ask Anything Top Questions

What is Yom Kippur?

Yom Kippur is the most solemn of Jewish holidays, when Jews seek to expiate their sins and achieve reconciliation with God. It concludes the Ten Days of Repentance that begin with Rosh Hashanah, the New Year, on the first day of Tishri in the Jewish calendar. It is a day of penitent prayer, total rest, and restrictions such as fasting.

How is Yom Kippur observed?

Jewish congregations spend the evening of Yom Kippur and the entire next day in prayer and meditation. The prayers on the eve of Yom Kippur include the famous Kol Nidre (Aramaic: “All Vows”) prayer. The services on the day of Yom Kippur continue from morning until evening and include readings from the Torah and the reciting of penitential prayers. The holiday ends with the blowing of the ritual horn known as the shofar.

What are the rules of Yom Kippur?

During Yom Kippur Jews are supposed to avoid food, drink, sexual relations, wearing leather shoes, bathing or washing (with necessary exceptions), and applying oils and creams to themselves. Many Jews also abstain from wearing gold jewelry during the holiday. As a Sabbath day, Yom Kippur also requires that Jews abstain from work.

What are the High Holy Days, and how is Yom Kippur connected with Rosh Hashanah?

The 10 days from Rosh Hashanah, the New Year, to Yom Kippur are called in Judaism the Ten Days of Repentance, the Days of Awe, or, in colloquial English, the High Holy Days. Jewish thought holds that on Rosh Hashanah, God inscribes every person’s name in either the book of life, the book of death, or an intermediate book for those whose fates are not yet determined for the coming year. Performing acts of kindness, atoning for sins, and prayerfully seeking forgiveness during the High Holy Days are thought to help someone whose fate is unclear be inscribed in the book of life by the time the divine books are sealed on Yom Kippur.

What do you say to someone observing Yom Kippur?

A common greeting on Yom Kippur is to wish others “gemar chatima tova,” or “a good final sealing.” Judaism holds that on Rosh Hashanah, God writes a person’s fate for the next year in either the book of life and or the book of death, but during the Ten Days of Repentance there is still time for God’s decision to be adjusted before it is finalized on Yom Kippur. Hence the wish for someone to have “a good final sealing.” Another greeting is “tzom kal” or “an easy fast” since required fasting during the holiday can be difficult.

What does Yom Kippur mean?

Yom Kippur means Day of Atonement. It is a day when Jews intensively seek to expiate their sins and achieve reconciliation with God.

Yom Kippur, most solemn and holiest of Jewish holidays when Jews seek to expiate their sins and achieve reconciliation with God. Yom Kippur is observed on the 10th day of the month of Tishri in the Jewish calendar, falling in September or October in the Gregorian calendar. It concludes the Ten Days of Repentance (Hebrew: ʿAseret Yemei Teshuvah)—also called the Days of Awe (Hebrew: Yamim Noraʾim) or the High Holy Days in English—that begin with Rosh Hashanah (New Year’s Day) on the first day of Tishri. The Hebrew Bible refers to Yom Kippur as Shabbat Shabbaton (“Sabbath of Solemn Rest” or “Sabbath of Sabbaths”) because, even though the holy day may fall on a weekday, on Yom Kippur solemnity and cessation of work typically associated with the Sabbath are most complete. The purpose of Yom Kippur in Judaism is to effect individual and collective purification by the practice of forgiveness of the sins of others and by sincere repentance for one’s own sins against God.

Biblical sources and Diasporic meanings

Yom Kippur as a holiday of humbling atonement and a sabbath day of rest, to be observed on the 10th day of the month of Tishri, is established in the Hebrew Bible in Leviticus 16 and 23:26–30 and Numbers 29:7–11. Leviticus 16 outlines the necessary ritual actions of the high priest of the Temple of Jerusalem, who in Leviticus is specified as Moses’ brother Aaron. The high priest was required to successively confess his own sins, the sins of priests, and the sins of all Israelites. Clothed in white linen, he entered the Holy of Holies—allowed only at Yom Kippur—to offer incense and to sprinkle the blood of the sacrifice in order to cleanse the Temple’s inner sanctum. The ceremony involved the sacrifice of a bull, a ram, and a goat (the scapegoat), which were killed as a means of purification. The ritual also included the sacrifice of one more goat that was driven into the wilderness, symbolically carrying away the sins of the Israelites. Many of the priestly ritual actions were intended as a means of cleansing (Hebrew: kippur), a term that can also mean atonement. Thus the holiday combines the sense of seeking divine forgiveness with sacrificial ritual actions that are thought to cleanse.

Atonement Without Sacrifice

A story in a Midrashic text tells that the rabbi Joshua ben Hananiah was in Jerusalem lamenting the destruction of the Temple and how that made it impossible for Jews to atone for sins. But his teacher, Johanan ben Zakkai, responded that there is no need to despair because one can atone through acts of kindness (Hebrew: chesed, a term variously translated as “love,” “kindness,” “loyalty,” and “mercy”). Johanan ben Zakkai cited Hosea 6:6: “For I desire steadfast love and not sacrifice, the knowledge of God rather than burnt offerings.”

After the destruction of the Temple in 70 ce, the sages and rabbis of Rabbinic Judaism debated, distilled, and adapted the Jewish laws (Halakhah) for a dispersed Jewish Diaspora. Yom Kippur’s association with animal sacrifice in the Temple was generally replaced with increased emphasis on atonement of sins, God’s judgment, and the doing of good. Rabbinic literature gave it the additional name Yom ha-Din (Day of Judgment).

More From Britannica Jewish religious year: High Holy Days

There is one element of animal sacrifice that has remained, however: Some communities, mostly Orthodox and Hasidic Jews, observe the ritual of kaparot (“atonements”) during the Ten Days of Repentance or on the eve of Yom Kippur. In this practice Jews wave a chicken (roosters for men and hens for women) above their heads three times while reciting a prayer that ritually expiates sins by passing negative divine judgment to the chicken. The chicken serves as a scapegoat. It is then killed following kosher regulations and given to charity. Kaparot can be done with fish or money in the place of chickens. This ritual, which appears neither in the Torah nor the Talmud but has been in practice since at least the 9th century ce, has not always been accepted in Judaism and has received pushback from both rabbis and animal rights activists.

Fates determined

Written and Sealed

During the High Holy Days Jews often say “On Rosh Hashanah it is inscribed, and on Yom Kippur it is sealed.” This means that on Rosh Hashanah, God writes one’s fate for the next year in the books of life and death, but there is still time for God’s decision to be adjusted before it is finalized on Yom Kippur. Thus a common greeting on Yom Kippur is to wish others “gemar chatima tova,” or “a good final sealing.”

During the 10 days between Rosh Hashanah and Yom Kippur, it is believed that God determines people’s fates for the following year. This notion is summarized in the popular maxim, “On Rosh Hashanah it is inscribed, and on Yom Kippur it is sealed.” The line is found in the prayer Unetaneh Toqef, which is recited during this holiday period and is attributed to Rabbi Amnon of Mainz in Europe in the 11th or 12th century ce—but is possibly centuries older. It is said that on Rosh Hashanah, God opens the books of life and death. The righteous are inscribed in the book of life, and the unrighteous are inscribed in the book of death. For those whose past actions are not immediately determinative of their fate, or who have done equally good and bad deeds, they are inscribed in a third temporary book until a final decision is made on Yom Kippur. Since it is often thought that the majority of people fall into this middle category, Jews seek forgiveness for misdeeds through repentance (teshuvah), prayer (tefilah), and doing charitable deeds (tzedakah) in order to be inscribed in the book of life. On Yom Kippur God’s judgments are finalized, and the books of life and death are sealed.

Rules and prayers

Yom Kippur’s Restrictions

On Yom Kippur Jews observing the holiday do not work, and they also abide by five rules in order to avoid comforts and focus on atonement:

• No food or drink
• No bathing or washing
• No applying oils or creams on the body
• No leather shoes
• No sexual relations

Yom Kippur is marked by abstention from food, drink, and sexual relations. Although Judaism includes six fast days, the Yom Kippur fast is usually the most commonly observed. The fast lasts 25 hours (including part of the 9th of Tishri and accounting for discrepancies about when sundown occurs), but children under the age of bar and bat mitzvah (13 for boys and 12 for girls) are not required to fast, although older children may do so at least partially to prepare themselves for undertaking this ritual obligation.

Jews are also forbidden to bathe or wash themselves on Yom Kippur, albeit with some exceptions for exigencies. They are also instructed to avoid wearing leather shoes and applying oil and other creams or lotions on themselves. It is further customary to avoid wearing gold on the holiday since it evokes the sin of worshipping the golden calf. Wearing white as a symbol of purity is common, and some congregants in the synagogue may wear long white robes called kittel.

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Jewish congregations in synagogues spend the evening of Yom Kippur (which begins at sundown) and the entire following daytime in prayer and meditation. On the evening that begins Yom Kippur the Kol Nidre is recited. Famous for its beautiful melody, the Kol Nidre is a declaration annulling all vows made during the course of the year insofar as they concern oneself (obligations toward others are excluded).

Friends also ask and accept forgiveness from one another for past offenses on the evening before Yom Kippur, since obtaining forgiveness from one’s fellows signifies God’s forgiveness. Another feature of the evening service is the Selichot (“Forgiveness”) prayers, which ask God for forgiveness and describe God’s mercy. God is believed to forgive the sins of those who sincerely repent and show their repentance by improved behavior and performance of good deeds.

Hebrew: יום הכיפורים (Yom Ha-Kippurim) (Show more) English: Day of Atonement (Show more) Related Topics: Jewish festivals Kol Nidre tashlik neilah Yom Kippur (Show more) See all related content

The services on the day of Yom Kippur last continuously from morning to evening and include readings from the Torah and the reciting of penitential prayers. The morning prayers also include Unetaneh Toqef. Yizkor, which are memorial prayers for the deceased, may also be recited by members of the congregation, particularly in Ashkenazi congregations. The services end with closing prayers and the final blowing of the ritual horn known as the shofar.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Charles Preston.