Because of the penitence and sorrow associated with the Crucifixion, the Divine Liturgy is never celebrated on Good Friday, which Eastern Orthodox call "Holy and Great Friday", except when this day coincides with the feast of the Annunciation (which falls on the fixed date of March 25). The faithful revisit the events of the day through public reading of the Psalms and Gospels, and singing hymns about Christ's death. Rich visual imagery and symbolism as well as stirring hymnody are remarkable elements of these observances. In the Orthodox understanding, the events of Holy Week are not simply an annual commemoration of past events, but the faithful actually participate in the death and resurrection of Jesus. Each hour of this day is the new suffering and the new effort of the expiatory suffering of the Savior. And the echo of this suffering is already heard in every word of our worship service - unique and incomparable both in the power of tenderness and feeling and in the depth of the boundless compassion for the suffering of the Savior. The Holy Church opens before the eyes of believers a full picture of the redeeming suffering of the Lord beginning with the bloody sweat in the Garden of Gethsemane up to the crucifixion on Golgotha. Taking us back through the past centuries in thought, the Holy Church brings us to the foot of the cross of Christ erected on Golgotha, and makes us present among the quivering spectators of all the torture of the Savior. Holy and Great Friday is observed as a strict fast, and adult Byzantine Christians are expected to abstain from all food and drink the entire day to the extent that their health permits. "On this Holy day neither a meal is offered nor do we eat on this day of the crucifixion. If someone is unable or has become very old [or is] unable to fast, he may be given bread and water after sunset. In this way we come to the holy commandment of the Holy Apostles not to eat on Great Friday." Matins of Holy and Great Friday The Byzantine Christian observance of Holy and Great Friday, which is formally known as The Order of Holy and Saving Passion of our Lord Jesus Christ, begins on Thursday night with the Matins of the Twelve Passion Gospels. Scattered throughout this Matins service are twelve readings from all four of the Gospels which recount the events of the Passion from the Last Supper through the Crucifixion the burial of Jesus. The first of these twelve readings John 13:31-18:1 is the longest Gospel reading of the year. Just before the sixth Gospel reading, which recounts Jesus being nailed to the cross, a large cross is carried out of the sanctuary by the priest, accompanied by incense and candles, and is placed in the center of the nave (where the congregation gathers), with a two-dimensional painted icon of the body of Christ (soma or corpus) affixed to it. As the cross is being carried, the priest or a chanter chants a special antiphon: Today He who hung the earth upon the waters is hung upon the Cross (three times). He who is King of the angels is arrayed in a crown of thorns. He who wraps the heaven in clouds is wrapped in the purple of mockery. He who in Jordan set Adam free receives blows upon His face. The Bridegroom of the Church is transfixed with nails. The Son of the Virgin is pierced with a spear. We venerate Thy Passion, O Christ (three times). Show us also Thy glorious Resurrection. During the service, all come forward to kiss the feet of Christ on the cross. After the Canon, a brief, moving hymn, The Wise Thief is chanted by singers who stand at the foot of the cross in the center of the nave. The service does not end with the First Hour, as usual, but with a special dismissal by the priest. Royal Hours The next day, in the forenoon on Friday, all gather again to pray the Royal Hours, a special expanded celebration of the Little Hours (including the First Hour, Third Hour, Sixth Hour, Ninth Hour and Typica) with the addition of scripture readings (Old Testament, Epistle and Gospel) and hymns about the Crucifixion at each of the Hours (some of the material from the previous night is repeated). This service is somewhat more festive in character, and derives its name of "Royal" from both the fact that the Hours are served with more solemnity than normal, commemorating Christ the King who humbled himself for the salvation of mankind, and also from the fact that this service was in the past attended by the Emperor and his court. Vespers of Holy and Great Friday The epitaphios ("winding sheet"), depicting the preparation of the body of Jesus for burial. In the afternoon, around the 3 p.m. all gather for the Vespers of the Taking-Down from the Cross, commemorating the Deposition from the Cross. The Gospel reading is a concatenation taken from all four of the Gospels. During the service, the body of Christ (the soma) is removed from the cross, as the words in the Gospel reading mention Joseph of Arimathea, wrapped in a linen shroud, and taken to the altar in the sanctuary. Near the end of the service an epitaphios or "winding sheet" (a cloth embroidered with the image of Christ prepared for burial) is carried in procession to a low table in the nave which represents the Tomb of Christ; it is often decorated with an abundance of flowers. The epitaphios itself represents the body of Jesus wrapped in a burial shroud, and is a roughly full-size cloth icon of the body of Christ. Then the priest may deliver a homily and everyone comes forward to venerate the epitaphios. In the Slavic practice, at the end of Vespers, Compline is immediately served, featuring a special Canon of the Crucifixion of our Lord and the Lamentation of the Most Holy Theotokos by Symeon the Logothete.

Source: Church Calender