Great Lent, or the Great Fast, is the most important fasting season of the church year within many denominations of Eastern Christianity. It is intended to prepare Christians for the greatest feast of the church year, Pascha (Easter).
Divine Liturgy or Holy Liturgy is the usual name used in most Eastern Christian rites for the Eucharistic service.
Holy Week is the most sacred week in the liturgical year in Christianity. For all Christian traditions, it is a moveable observance. In Eastern Christianity, which also calls it Great Week, it is the week following Great Lent and Lazarus Saturday, starting on the evening of Palm Sunday and concluding on the evening of Great Saturday. In Western Christianity, Holy Week is the sixth and last week of Lent, beginning with Palm Sunday and concluding on Holy Saturday.
The Byzantine Rite, also known as the Greek Rite or the Rite of Constantinople, is a liturgical rite that is identified with the wide range of cultural, devotional, and canonical practices that developed in the Eastern Christian church of Constantinople.
In the Christian liturgical calendar, there are several different Feasts of the Cross, all of which commemorate the cross used in the crucifixion of Jesus. Unlike Good Friday, which is dedicated to the passion of Christ and the crucifixion, these feast days celebrate the cross itself, as the sign of salvation. In Western Catholicism, Eastern Catholicism, Eastern Orthodoxy, Oriental Orthodoxy, Lutheranism and Anglicanism the most common day of commemoration is 14 September, or 27 September in churches still using the Julian calendar.
The Easter Vigil, also called the Paschal Vigil or the Great Vigil of Easter, is a liturgy held in traditional Christian churches as the first official celebration of the Resurrection of Jesus. Historically, it is during this liturgy that people are baptized and that adult catechumens are received into full communion with the Church. It is held in the hours of darkness between sunset on Holy Saturday and sunrise on Easter Day – most commonly in the evening of Holy Saturday or midnight – and is the first celebration of Easter, days traditionally being considered to begin at sunset.
Orthros or útrenya, in the Byzantine Rite of the Eastern Orthodox Church and the Eastern Catholic Churches, is the last of the four night offices, the other three being vespers, compline, and midnight office. Traditionally, in monasteries it is held daily so as to end immediately following sunrise, in contrast to parishes where it is held only on Sundays and feast days. It is often called matins after the office it most nearly corresponds to in Western Christian churches.
In Eastern Orthodox and Byzantine Catholic churches, an entrance is a procession during which the clergy enter into the sanctuary through the Holy Doors. The origin of these entrances goes back to the early church, when the liturgical books and sacred vessels were kept in special storage rooms for safe keeping and the procession was necessary to bring these objects into the church when needed. Over the centuries, these processions have grown more elaborate, and nowadays are accompanied by incense, candles and liturgical fans. In the liturgical theology of the Eastern Orthodox Church, the angels are believed to enter with the clergy into the sanctuary, as evidenced by the prayers which accompany the various entrances.
Prime, or the First Hour, is one of the canonical hours of the Divine Office, said at the first hour of daylight, between the dawn hour of Lauds and the 9 a.m. hour of Terce. It remains part of the Christian liturgies of Eastern Christianity, but suppressed within the Latin liturgical rites by the Second Vatican Council. In the Coptic Church, a denomination of Oriental Orthodox Christianity, the office of Prime is prayed at 6 am in eastward direction of prayer by all members in this denomination, both clergy and laity, being one of the seven fixed prayer times. Latin Catholic clergy under obligation to celebrate the Liturgy of the Hours may still fulfil their obligation by using the edition of the Roman Breviary promulgated by Pope John XXIII in 1962, which contains Prime. Like all the liturgical hours, except the Office of Readings, it consists mainly of Psalms. It is one of the Little Hours.
In Christianity, the Little Hours or minor hours are the canonical hours other than the three major hours.
Acolouthia in the Eastern Orthodox and Eastern Catholic churches, signifies the arrangement of the Divine Services, perhaps because the parts are closely connected and follow in order. In a more restricted sense, the term "acolouth" refers to the fixed portion of the Office. The portions of the Office that are variable are called the Sequences. While the structure and history of the various forms of the Divine Office in the numerous ancient Christian rites is exceedingly rich, the following article will restrict itself to the practice as it evolved in the Eastern Roman (Byzantine) Empire.
Bright Week, Pascha Week or Renewal Week is the name used by the Eastern Orthodox and Byzantine Rite Catholic Churches for the period of seven days beginning on Easter and continuing up to the following Sunday, which is known as Thomas Sunday.
The Gospel in Christian liturgy refers to a reading from the Gospels used during various religious services, including Mass or Divine Liturgy (Eucharist). In many Christian churches, all present stand when a passage from one of the Gospels is read publicly, and sit when a passage from a different part of the Bible is read. The reading of the Gospels, often contained in a liturgical edition containing only the four Gospels, is traditionally done by a minister, priest or deacon, and in many traditions the Gospel Book is brought into the midst of the congregation to be read.
A Paraklesis or Supplicatory Canon in the Byzantine Rite, is a service of supplication for the welfare of the living. It is addressed to a specific Saint or to the Most Holy Theotokos whose intercessions are sought through the chanting of the supplicatory canon together with psalms, hymns, and litanies.
The Epitaphios is a Christian religious icon, typically consisting of a large, embroidered and often richly adorned cloth, bearing an image of the dead body of Christ, often accompanied by his mother and other figures, following the Gospel account. It is used during the liturgical services of Good Friday and Holy Saturday in the Eastern Orthodox and Byzantine Catholic churches, as well as some Oriental Orthodox Churches. It also exists in painted or mosaic form, on wall or panel.
The Pentecostarion is the liturgical book used by the Eastern Orthodox and Byzantine Catholic churches during the Paschal Season which extends from Pascha (Easter) to the Sunday following All Saints Sunday.
The All-night vigil is a service of the Eastern Orthodox and Byzantine Catholic churches consisting of an aggregation of the canonical hours of Compline, Vespers, Matins, and the First Hour. This service may be performed on any Sunday or major feast, any feast for which a Litia is prescribed; these feasts are marked in the Typikon and in liturgical calendars by a Greek cross printed in red in a properly shaped semicircle [open at the top].
Eastern Orthodox worship in this article is distinguished from Eastern Orthodox prayer in that 'worship' refers to the activity of the Christian Church as a body offering up prayers to God while 'prayer' refers to the individual devotional traditions of the Orthodox.
The Exapostilarion is a hymn or group of hymns chanted in the Eastern Orthodox and Greek-Catholic Churches at the conclusion of the Canon near the end of Matins. The Exapostilarion is chanted after the Little Litany that follows the Ninth Ode of the Canon.
The Polyeleos is a festive portion of the Matins or All-Night Vigil service as observed on higher-ranking feast days in the Eastern Orthodox, Eastern Lutheran, and Byzantine Rite Catholic Churches. The Polyeleos is considered to be the high point of the service, and contains the reading of the Matins Gospel. Because of its liturgical importance, settings for the Polyeleos have been composed by Sergei Rachmaninoff and others.
