Lord's DayThe Lord's Day in Christianity is generally Sunday, the principal day of communal worship. It is observed by most Christians as the weekly memorial of the resurrection of Jesus Christ, who is said in the canonical Gospels to have been witnessed alive from the dead early on the first day of the week. According to some sources, Christians held the Sabbath as resting day, commemorating the God's Commandment, which said that the Sabbath should be the day of resting, according to .
AgpeyaThe Agpeya (Coptic: Ϯⲁⲅⲡⲓⲁ, أجبية) is the Coptic Christian "Prayer Book of the Hours" or breviary, and is equivalent to the Shehimo in the Syriac Orthodox Church (another Oriental Orthodox Christian denomination), as well as the Byzantine Horologion and Roman Liturgy of the Hours used by the Eastern Orthodox Churches and Roman Catholic Church, respectively.
PrayerPrayer is an invocation or act that seeks to activate a rapport with an object of worship through deliberate communication. In the narrow sense, the term refers to an act of supplication or intercession directed towards a deity or a deified ancestor. More generally, prayer can also have the purpose of thanksgiving or praise, and in comparative religion is closely associated with more abstract forms of meditation and with charms or spells. Prayer can take a variety of forms: it can be part of a set liturgy or ritual, and it can be performed alone or in groups.
Home altarA home altar or family altar is a shrine kept in the home of a Western Christian family used for Christian prayer and family worship. Home altars often contain a cross or crucifix, a copy of the Bible (especially a Family Bible), a breviary and/or other prayer book, a daily devotional, a headcovering (worn by many Christian women, especially during prayer and worship), icons of Jesus Christ and prayer beads, among other religious articles specific to the individual's Christian denomination, for example, the images of the saints for Catholics, the Small Catechism for Lutherans, and the Anglican prayer beads for Anglicans.
LiturgyLiturgy is the customary public ritual of worship performed by a religious group. Liturgy can also be used to refer specifically to public worship by Christians. As a religious phenomenon, liturgy represents a communal response to and participation in the sacred through activities reflecting praise, thanksgiving, remembrance, supplication, or repentance. It forms a basis for establishing a relationship with God. Technically speaking, liturgy forms a subset of ritual.
Sign of the crossMaking the sign of the cross (signum crucis), or blessing oneself or crossing oneself, is a ritual blessing made by members of some branches of Christianity. This blessing is made by the tracing of an upright cross or + across the body with the right hand, often accompanied by spoken or mental recitation of the Trinitarian formula: "In the name of the Father, and of the Son, and of the Holy Spirit. Amen.
Ad orientemAd orientem, meaning "to the east" in Ecclesiastical Latin, is a phrase used to describe the eastward orientation of Christian prayer and Christian worship, comprising the preposition ad (toward) and oriens (rising, sunrise, east), participle of orior (to rise). Ad orientem has been used to describe the eastward direction of prayer that the early Christians faced when praying, a practice that continues in the Eastern Orthodox Church, Oriental Orthodox churches, Mar Thoma Syrian Church, Assyrian Church of the East, as well as the Eastern Catholic and Eastern Lutheran churches.
