Ritual washing in Judaism

Occasions on which full-body immersion is currently practiced include:

• After a woman's niddah period concludes following menstruation or other uterine bleeding, she must immerse and only then is permitted to resume sexual relations with her husband.[5] This practice remains the principal use of contemporary mikvehs. It is fully observed in Orthodox Judaism, and normative in Conservative Judaism.
• Some Orthodox men immerse after having a seminal discharge (keri).
• In Orthodox Judaism, there is a widespread minhag for men, to immerse themselves on the day prior to Yom Kippur, and often do so before the three pilgrimage festivals, and before Rosh Hashanah. Many Haredi Jews additionally immerse themselves at least before a Shabbat, and many Hasidic Jews do so daily before morning prayers.
• A convert to Judaism must immerse.[6]
• Taharah, ("Purification"), the ritual washing and cleansing, and immersion in a mikveh according to many customs, of a Jew's body prior to burial
• Prior to ascending the Temple Mount (by those Orthodox or Masorti authorities who permit ascending the Temple Mount)

The Torah prescribes rituals addressing the skin condition known as tzaraath[7] and unusual genital discharges in a man or women (Zav/Zavah),[8] which required special sacrifices and rituals in the days of the Temple in Jerusalem including immersion in a mikveh.

The practice of checking for tzaraath fell out of use with the destruction of the Temple in Jerusalem and the end of sacrificial rites. However, each of the other requirements remains in effect to some extent in Orthodox Judaism and (to a lesser degree) in Conservative Judaism.

A woman experiencing uterine blood, not part of normal menstruation, was classified as a zavah in the days of the Temple in Jerusalem and remained in a state of ritual impurity for seven days before immersion. Today, the law of zavah remains in effect in Orthodox Judaism, in two respects. Due to extreme conditions in Roman Palestine in the time of the Amoraim, women's periods became irregular, and women became unable to determine whether or not their discharges were regular (niddah) or irregular (zavah). As a result, women adapted a stringency combining the niddah and zavah periods, refraining from intercourse and physical contact with their husbands for seven days of the zavah period following menstruation, for a total of approximately 12 days per month, which Orthodox women continue to observe today. The laws of zavah are also applied, as in Biblical times, to uterine blood discharges outside regular menstruation. Such circumstances are often interpreted leniently, however, and rabbinic stratagems have been devised to lessen their severity. Women experiencing irregularities (droplets) are sometimes advised to wear coloured underwear to mitigate the detectability of evidence of zavah status and hence a need to determine that a woman is a zavah.

Men experiencing a seminal discharge, including through regular marital intercourse, were prohibited from entering the Temple in Jerusalem and required to immerse in a mikveh, remaining ritually impure until the evening. The Talmud ascribes to the Great Assembly of Ezra a Rabbinic decree imposing further restrictions on men ritually impure from a seminal discharge, including a prohibition on studying Torah and from participating in services.

Maimonides wrote a responsum lifting the decree of Ezra, based on an opinion in the Talmud stating that it had failed to be observed by a majority of the community and the Jewish people found themselves unable to sustain it. However, Maimonides continued to follow the Keri restrictions as a matter of personal observance. Since then, observance of the rules of Keri and hence regular mikveh use by men fell into disuse in many communities. Hasidic Judaism, however, revived the practice of regular mikveh use, advocating regular daily mikveh use as a way of achieving spiritual purity. The growth of Hasidic Judaism resulted in a revival of mikveh use by men. In addition, some Sephardic and Mizrahi communities continued to observe the rules of keri throughout.

According to Leviticus, anyone who comes into contact with or carries any creature that had not been deliberately killed by shechita was regarded by the biblical regulations as having made themselves unclean by doing so, and therefore was compelled to immerse their entire body.[9] This regulation is immediately preceded by the rule against eating anything still containing blood, and according to biblical scholars this is also the context of the regulation about not eating non-sacrifices - that the regulation only treats such consumption as unclean if there is a risk of blood remaining within the carcass.[10] In the version of this regulation in Deuteronomy, eating the bodies of such creatures is not described as making an individual ritually impure, nor requires the eater to wash their body, but instead, such consumption is expressly forbidden, although the creature is allowed to be passed on to a non-Jew, who is permitted to eat it.[11]

Anyone who came into contact with a human corpse, or grave, was so ritually impure that they had to be sprinkled with the water produced from the red heifer ritual, in order to become ritually pure again;[12] however, the person who carried out the red heifer ritual and who sprinkled the water, was to be treated as having become ritually impure by doing so.[13] According to biblical scholars, this ritual derives from the same origin as the ritual described in Deuteronomy for a group of people to atone for murder by an unknown perpetrator,[14] according to which a heifer is killed at a stream, and hands are washed over it;[15] biblical scholars believe that these are both ultimately cases of sympathetic magic,[10] and similar rituals existed in Greek[16] and Roman[17] mythology.[18] The masoretic text describes the water produced from the red heifer ritual as a sin offering;[19] some English translations discount this detail, because it differs from other sin offerings by not being killed at the altar, although biblical scholars believe that this demonstrates a failure by these translations to understand the meaning of sin offerings.[10]

No explicit regulations are expressed in the bible concerning the treatment of a corpse itself, although historic rabbinical sources saw an implication that the dead should be thoroughly washed per Ecclesiastes,[20] as children are washed when born;[21] according to Raavyah, a prominent rishon, argued that the corpse should be cleansed carefully, including the ears and fingers, with nails pared and hair combed, so that the corpse could be laid to rest in the manner that the person had visited the synagogue during life.[18] Washing of corpses was not observed among the Jews living in Persian Babylon, for which they were criticised as dying in filth, without a candle and without a bath;[22] at the time, the non-Jewish Persians were predominantly Zoroastrian, and consequently believed that dead bodies were inherently ritually unclean, and should be exposed to the elements in a Tower of Silence to avoid defiling the earth with them.

In the early periods, the body was washed in a standard mikveh,[18] and this is frequently the form of the ritual in the present day, but the traditional washing ceremony, known as tahara, became quite detailed over time. A special building for the corpse-washing existed in the cemetery in 15th century Prague,[23] a practice which obtains in many Jewish communities today; a mikveh is provided at a number of ancient tombs. Female corpses are traditionally cleaned only by other females, and males only by other males.[18]

Between death and the traditional ceremony, the body is placed on the ground, and covered with a sheet, and at the start of the traditional ceremony, the body is lifted from the ground onto a special board or slab (a tahara board), so that it lies facing the door, with a white sheet underneath.[18] The clothes are then removed from the corpse (if they were not removed when the corpse was placed on the ground), and at this point Ezekiel 5:15 is recited by the enactors of the ritual, as it refers to the removal of filthy clothes.[18] Following this, the body is thoroughly rubbed with lukewarm water, with the mouth of the corpse covered so that water does not enter it;[18] the next part of the ritual is the pouring of water over the head, while Ezekiel 36:25 is quoted, since it refers to the sprinkling of water to produce cleanness;[18] and then each limb is washed downwards, while Canticles 5:11 and the following verses, which describe the beauty of elements of the body, are spoken.[18] Finally, nine measures of cold water are poured over the body while it is upright, which is the core element of the ceremony, and it is then dried (according to some customs), and enshrouded;[18] in ancient times the hair and nails were also cut, but by the 19th century, the hair was merely combed, and the nails were just cleansed with a special pin, unless their length is excessive.[18] After the ceremony, the taharah board is washed and dried, but is kept facing the same way, as there is the belief that turning it the other way will cause another person to die within 3 days.[18] Many communities have replaced the pouring of nine measures by immersion in a specially constructed mikveh.

A more elaborate ceremony, known as the grand washing (rechitzah gedolah, רחיצה גדולה), is available for the corpses of the more significant individuals; Hillel the Elder is traditionally credited with its invention. According to this latter form of ceremony, the water used for washing was perfumed by rose, myrtle, or aromatic spices; the use of spices was an ancient practice,[24] and the Mishnah especially mentions the washing ceremonies using myrtle.[25]

The biblical regulations of Yom Kippur require the officiating Jewish High Priest to bathe himself in water after sending off the scapegoat to Azazel, and a similar requirement was imposed on the person who led the scapegoat away, and the person who burned the sacrifices during the rituals of the day.[26] The Mishnah states that the High Priest had to immerse himself five times, and his hands and feet had to be washed ten times.[27]