A chevra kadisha (Hevra kadishah) (Aramaic: חֶבְרָה קַדִישָא, Ḥebh'ra Qaddisha "holy society") is an organization of Jewish men and women who see to it that the bodies of deceased Jews are prepared for burial according to Jewish tradition and are protected from desecration, willful or not, until burial. Two of the main requirements are the showing of proper respect for a corpse, and the ritual cleansing of the body and subsequent dressing for burial. It is usually referred to as a burial society in English.
The task of the chevra kadisha is considered a laudable one, as tending to the dead is a favour that the recipient cannot return, making it devoid of ulterior motives. Its work is therefore referred to as a chesed shel emet (Hebrew: חסד של אמת, "a good deed of truth"), paraphrased from Genesis 47:30 (where Jacob asks his son Joseph, "do me a 'true' favor" and Joseph promises his father to bury him in the burial place of his ancestors).
At the heart of the society's function is the ritual of tahara, or purification. The body is first thoroughly cleansed of dirt, body fluids and solids, and anything else that may be on the skin, and then it is ritually purified by immersion in, or a continuous flow of, water from the head over the entire body. Tahara may refer to either the entire process, or to the ritual purification. Once the body is purified, the body is dressed in tachrichim, or shrouds, of white pure muslin or linen garments made up of ten pieces for a male and twelve for a female, which are identical for each Jew and which symbolically recalls the garments worn by the Kohen Gadol (High Priest). Once the body is dressed, the casket is closed. When being buried in Israel, however, a casket is not used.