The Ten Days of Penitence begin on Rosh Hashana and close with Yom Kippur. Already in Talmudic times they were viewed as forming an especially appropriate period of introspection and repentance. Penitential prayers (seliḥot) are recited prior to the daily morning service and, in general, during the period scrupulous observance of the Law is expected.

According to Mishnaic teaching, the New Year festival ushers in the Days of Judgment for all of mankind. Despite its solemnity, the festive character of Rosh Hashana is in no way diminished. In Scripture it is called “a day when the horn is sounded”; in the liturgy “a day of remembrance.” In the land of Israel and in the Diaspora, Rosh Hashana is celebrated on the first two days of Tishri. Originally celebrated by all Jews on Tishri 1, calendrical uncertainty led to its being celebrated an additional day in the Diaspora and, depending upon the circumstances, one or two days in Palestine. After the calendar was fixed in 359, it was regularly celebrated in Palestine on Tishri 1 until the 12th century, when Provençal scholars introduced the two-day observance. Considerable speculation in recent literature concerning the origin of the Jewish New Year festival proves mostly that its early history can only be conjectured, not reconstructed.

The most distinctive Rosh Hashana observance is the sounding of the ram’s horn (shofar) at the synagogue service. Medieval commentators suggest that the blasts acclaim God as Ruler of the universe, recall the divine revelation at Sinai, and are a call for spiritual reawakening and repentance. An expanded New Year liturgy stresses God’s sovereignty, his concern for man, and his readiness to forgive those who repent. On the first day of Rosh Hashana (except when it falls on the Sabbath) it is customary for many to recite penitential prayers at a river, symbolically casting their sins into the river; this ceremony is called tashlikh (“thou wilt cast”). Other symbolic ceremonies, such as eating bread and apples dipped in honey, accompanied with prayers for a “sweet” and propitious year, are performed at the festive meals.

The most solemn of the Jewish festivals, Yom Kippur is a day when sins are confessed and expiated and man and God are reconciled. It is also the last of the Days of Judgment and the holiest day of the Jewish year. Celebrated on Tishri 10, it is marked by fasting, penitence, and prayer. Work, eating, drinking, washing, anointing one’s body, sexual intercourse, and donning leather shoes are all forbidden.

In Temple times, Yom Kippur provided the only occasion for the entry of the high priest into the Holy of Holies; details of the expiatory rites performed by the high priest and others are recorded in the Mishna and recounted in the liturgy. Present-day observances begin with a festive meal shortly before Yom Kippur eve. The Kol Nidre prayer (recited before the evening service) is a legal formula which absolves Jews from fulfilling solemn vows, thus safeguarding them from accidentally violating a vow’s stipulations. The formula first appears in gaonic sources (derived from the Babylonian Talmudic academies, 6th–11th centuries) but may be older; the haunting melody that accompanies it is of medieval origin. Virtually the entire day is spent in prayer at the synagogue, the closing service (neʿila) concluding with the sounding of the ram’s horn.

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Judaism: The Jewish religious year

Minor festivals: Hanukkah and Purim

Hanukkah and Purim are joyous festivals lacking the work restrictions characteristic of the major festivals.

Hanukkah commemorates the Maccabean (or Hasmonean) victories over the forces of the Seleucid king Antiochus IV Epiphanes (reigned 175–164 bce), and the rededication of the Temple, Kislev 25, 164 bce. Led by Mattathias and his son Judah Maccabee, the Maccabees were the first Jews who fought to defend their religious beliefs rather than their lives. Hanukkah is celebrated for eight days beginning on Kislev 25. The Hanukkah lamp or candelabrum (menora), which recalls the Temple lampstand, is kindled each evening. One candle is lit the first evening; an additional candle is lit each subsequent evening until eight candles are lit on the last evening. According to the Talmud (Shabbat 21b), the ritually pure oil available at the rededication of the Temple was sufficient for only one day’s light but miraculously lasted for eight days, hence the eight-day celebration of Hanukkah. Evidence from the Apocrypha (writings excluded from the Jewish canon but included in the Roman Catholic and Eastern Orthodox canons) and rabbinic literature shows an association between Sukkot and Hanukkah, possibly accounting for the latter’s eight-day duration. Hanukkah joy is expressed in festive meals, song, games, and gifts to children. The liturgy includes Hallel, public readings from the Torah, and the ʿal ha-nissim (“for the miracles”) prayer. The Scroll of Antiochus, an early medieval account of Hanukkah, is read in some synagogues and homes.

As recorded in the biblical Book of Esther, Purim commemorates the delivery of the Persian Jewish community from the plottings of Haman, the prime minister of Ahasuerus’ (perhaps Xerxes, king of Persia, 486–465 bce). Mordecai and his cousin Esther, the King’s Jewish wife, interceded on behalf of the Jewish community, rescinded the royal edict authorizing a pogrom against the Jews, and instituted the Purim festival. The historicity of the biblical account is questioned by many modern scholars. It is now generally conceded that the Book of Esther was written in the Persian period (it contains Persian but not Greek words) and reflects Persian custom. Except for the Book of Esther, the earliest mention of the Purim festival is from the 2nd–1st centuries bce. The name of the festival was derived from the Akkadian pûru, meaning “lot.”

In most Jewish communities, Purim is celebrated on Adar 14 (some also celebrate it on the 15th, others only on the 15th). On the evening preceding Purim, men, women, and children gather in the synagogue to hear the Book of Esther read from a scroll (megilla). The reading is repeated Purim morning. A festive meal during the day is accompanied by much song, wine, and merriment. Masquerades, Purim plays, and other forms of parody are common. Friends exchange gifts of foodstuffs and also present gifts to the poor. Aside from the Esther readings, the liturgy includes public reading from the Torah and recital of the Purim version of the ʿal ha-nissim prayer.

The five fasts

The commemorative aspects of the fasts are bound up with their penitential aspects, all of which find expression in the liturgy. Thus the Jew not only relives the tragic history of his people with each fast, but is also afforded an opportunity to search within himself and focus on his own (and his people’s) present and future. Penitential prayers (seliḥot) are recited on all fasts, and the Torah is read at the morning and afternoon services.

ʿAsara be-Ṭevet (Fast of Ṭevet 10) commemorates the beginning of the siege of Jerusalem by Nebuchadnezzar, king of Babylonia, in 588 bce.

Shivaʿ ʿAsar be-Tammuz (Fast of Tammuz 17) commemorates the first breach in the wall of Jerusalem by the Romans in 70 ce. It initiates three weeks of semi-mourning that culminate with Tisha be-Av.

Tisha be-Av (Fast of Av 9) commemorates the destruction of the First and Second Temples in 586 bce and 70 ce. The most solemn of the five fasts, its self-denials are more rigorous than those prescribed for the others, and, like Yom Kippur, the fast begins at sunset. The book of Lamentations is read at the evening service, followed by poetic laments that are also recited Tisha be-Av morning.

Tzom Gedaliahu (Fast of Gedaliah) commemorates the slaying of Gedaliah, governor of Judah after the destruction of the First Temple.

Taʿanit Esther (Fast of Esther), which commemorates Esther’s fast (cf. Esther 4:16), is first mentioned in gaonic literature.

The lesser holidays

A major festival in the biblical period, Rosh Ḥodesh (First Day of the Month) gradually lost most of its festive character. Since Talmudic times, it has been customary to recite Hallel on Rosh Ḥodesh. In the medieval period, aside from the liturgical practices carried over from the Talmudic period, it was celebrated with a festive meal. Always more diligently observed in Palestine than in the Diaspora, attempts to revive its full festive character are being made in modern Israel.

First mentioned in the Mishna, where it marks the New Year for tithing purposes, Tu bi-Shevat (New Year for Trees) assumed a festive character in the gaonic period, and later in the medieval period it became customary to eat assorted fruits on the holiday. In modern times it is associated with the planting of trees in Israel.

Lag ba-ʿOmer (33rd Day of the ʿOmer Counting) is a joyous interlude in the otherwise somber period of ʿOmer counting (i.e., of the 49 days to Shavuot), which is traditionally observed as a time of semi-mourning. Usually celebrated as a school holiday with outings, it is first mentioned in medieval sources, which attribute its origin to the cessation of a plague that was decimating the students of Akiba, an influential rabbinic sage in the 2nd century, and to the anniversary of the death of another great rabbi, Simeon ben Yoḥai (died c. 170 ce).