KABBALAT SHABBAT (Heb. קַבָּלַת שַׁבָּת; "Reception of the Sabbath"), term designating the inauguration of the Sabbath in general and, in a more specifically liturgical sense, that part of the Friday evening service which precedes the regular evening prayer and solemnly welcomes the Sabbath. The inauguration begins considerably before nightfall "so as to add from the weekday to the holy day" (Yoma 81b). Much care is traditionally lavished on preparing for the Sabbath. All housework that is forbidden on the Sabbath, e.g. cooking, is completed beforehand (cf. Shab. 2:7; Shab. 119a). Before the Sabbath, some people used to read the weekly Torah section, twice in the original Hebrew texts and once in the Aramaic (Targum) version. It is customary to bathe before the beginning of the Sabbath and to put on festive clothes. The Talmud (Shab. 119a) tells that R. Ḥanina used to put on his Sabbath clothes and stand at sunset of Sabbath eve and exclaim: "Come and let us go forth to welcome the Queen Sabbath" and R. Yannai used to don his festive robes at that time and exclaim, "Come, O bride! Come, O bride!" These stories served as the main motif for the Sabbath hymn *"Lekhah Dodi" of Solomon b. Moses ha-Levi *Alkabeẓ and formed the basis of the custom of the kabbalists of Safed, who welcomed the Sabbath by going into the fields on Fridays at sunset to recite special prayers and hymns in honor of the Sabbath amid nature. In traditional synagogues this prayer is recited no later than half an hour after sunset. It opens with Psalm 29 (in the Ashkenazi and some other rites with the six Psalms 95–99 and 29 corresponding to the six days of creation or the six weekdays). The hymn "Lekhah Dodi" is then sung, followed by Psalms 92 and 93. In some rituals the evening service is preceded by the recital of the *Song of Songs in honor of the Bride (or Queen) Sabbath. In many traditional rituals the hymn *"Anna be-Kho'ah" is said before the "Lekhah Dodi" (or Psalm 121). Chapter 2 of Mishnah Shabbat (Ba-Meh Madlikin) is recited in some rites before the main evening prayer, in other rites following it. In the Yemenite ritual special piyyutim are also inserted before the evening prayer on those Sabbaths which coincide with the New Moon as well as for Sabbaths in the *Omer period. The major deviations from the regular evening service are the elimination of the petitions of the Amidah and the substitution of blessings in honor of the Sabbath.
In modern Israel special Kabbalat Shabbat ceremonies are held on Friday at noontime in schools and kindergartens, and before supper in some kibbutzim, where they consist of lighting the Sabbath candles, reciting poetry, and singing songs in honor of the weekly day of rest. In the United States, many Reform and Conservative synagogues have introduced the late Friday evening service, which starts after the end of the business day in order to enable a greater number of the congregants to participate. The central feature of the service is the rabbi's sermon; after the service an Oneg Shabbat (Sabbath Reception) is usually held.
Elbogen, Gottesdienst, 107–12; Idelsohn, Liturgy, 128ff.
"Kabbalat Shabbat." Encyclopaedia Judaica. . Encyclopedia.com. (January 16, 2019). https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/kabbalat-shabbat
"Kabbalat Shabbat." Encyclopaedia Judaica. . Retrieved January 16, 2019 from Encyclopedia.com: https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/kabbalat-shabbat