
Isenheim Altarpiece in Colmar, Alsace. by: Matthias Grünewald
Good Friday (from the senses pious, holy of the word "good"), is a religious holiday observed bt Roman Catholics commemorating the crucifixion of Jesus Christ and his death at Calvary. The holiday is observed during Holy Week as part of the Paschal Triduum on the Friday preceding Easter Sunday, and may coincide with the Jewish observance of Passover. It is also known as Holy Friday, Great Friday, or Easter Friday.
Based on the details of the Canonical gospels, the Crucifixion of Jesus was most on a Friday (John 19:42). The year of Good Friday is AD 33, by two different groups, and originally as AD 34 by Isaac Newton via the differences between the Biblical and Julian calendars and the crescent of the moon. A third method, using a completely different astronomical approach based on a lunar Crucifixion darkness and eclipse model (consistent with Apostle Peter's reference to a "moon of blood" in Acts 2:20), points to Friday, 3 April AD 33.
According to the accounts in the Gospels, the Temple Guards, guided by Jesus' disciple Judas Iscariot, arrested Jesus in the Garden of Gethsemane. Judas received money (30 pieces of silver) (Matthew 26:14-16) for betraying Jesus and told the guards that whomever he kisses is the one they are to arrest. Following his arrest, Jesus is brought to the house of Annas, who is the father-in-law of the high priest, Caiaphas. There he is interrogated with little result and sent bound to Caiaphas the high priest where the Sanhedrin had assembled (John 18:1-24).
Conflicting testimony against Jesus is brought forth by many witnesses, to which Jesus answers nothing. Finally the high priest adjures Jesus to respond under solemn oath, saying "I adjure you, by the Living God, to tell us, are you the Anointed One, the Son of God?" Jesus testifies in the affirmative, "You have said it, and in time you will see the Son of Man seated at the right hand of the Almighty, coming on the clouds of Heaven." The high priest condemns Jesus for blasphemy, and the Sanhedrin Trial of Jesus concurs with a sentence of death (Matthew 26:57-66). Peter, waiting in the courtyard, also denies Jesus three times to bystanders while the interrogations were proceeding just as Jesus had predicted.
Simeron Kremate Epi Xilo:
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.
"Vexilla Regis"
The "Vexilla Regis" is a Latin hymn by the Christian poet Venantius Fortunatus, Bishop of Poitiers. It takes its title from its opening stanza:
Vexilla regis prodeunt,
fulget crucis mysterium,
quo carne carnis conditor
suspensus est patibulo. The banners of the king issue forth,
doth flash the wonder of the cross,
where the preserver in flesh, of flesh,
by the cross-bar [of the crucifying cross] is hung.
The hymn was first sung in the procession (November 19, 569) when a relic of the True Cross, sent by the Byzantine Emperor Justin II from the East at the request of St. Radegunda, was carried in great pomp from Tours to her monastery of Saint-Croix at Poitiers. Its original processional use is commemorated in the Roman Missal on Good Friday, when the Blessed Sacrament is carried in procession from the Repository to the High Altar.
Liturgy
The liturgy consists of three parts: the Liturgy of the Word, the Veneration of the Cross, and the Mass of the Presantified.
The Liturgy of the Word, consists of the clergy and assisting ministers entering in complete silence, without any singing. They then silently make a full prostration, "[signifying] both the abasement of 'earthly man,' and also the grief and sorrow of the Church." Then follows the Collect prayer, and the reading or chanting of Isaiah 52:13-53:12, Hebrews 4:14-16, 5:7-9, and the Passion account from the Gospel of John, traditionally divided between three deacons yet often divided between the celebrant and more than one singer or reader. This part of the liturgy concludes with the orationes sollemnes, a series of prayers for the Church, the Pope, the clergy and laity of the Church, those preparing for baptism, the unity of Christians, the Jewish people, those who do not believe in Christ, those who do not believe in God, those in public office, those in special need. After each prayer intention, the deacon calls the faithful to kneel for a short period of private prayer; the celebrant then sums up the prayer intention with a Collect-style prayer.
The Veneration of the Cross, has a crucifix, not necessarily the one that is normally on or near the altar at other times, solemnly displayed to the congregation and then venerated by them, individually if possible and usually by kissing the wood of the cross, while hymns and the Improperia ("Reproaches") with the Trisagion hymn are chanted
Holy Communion is done according to a rite based on that of the final part of Mass, beginning with the Our Father, but omitting the ceremony of "Breaking of the Bread" and its related chant, the "Agnus Dei". The Eucharist, consecrated at the Evening Mass of the Lord's Supper on Holy Thursday is distributed at this service. Before the reform of Pope Pius XII, only the priest received Communion in the framework of what was called the "Mass of the Presanctified", which included the usual Offertory prayers, with the placing of wine in the chalice, but which omitted the Canon of the Mass. The priest and people then depart in silence, and the altar cloth is removed, leaving the altar bare except for the cross and two or four candlesticks.
Acts of Reparation to Jesus Christ
The Roman Catholic tradition includes specific prayers and devotions as acts of reparation for the sufferings and insults that Jesus suffered during his Passion on Good Friday. These Acts of Reparation to Jesus Christ do not involve a petition for a living or deceased beneficiary, but aim to repair the sins against Jesus. Some such prayers are provided in the Raccolta Catholic prayer book (approved by a Decree of 1854, and published by the Holy See in 1898) which also includes prayers as Acts of Reparation to the Virgin Mary.
In his encyclical Miserentissimus Redemptor on reparations, Pope Pius XI called Acts of Reparation to Jesus Christ a duty for Catholics and referred to them as "some sort of compensation to be rendered for the injury" with respect to the sufferings of Jesus.

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May Christ our true God, Who for the salvation of the world endured spitting, and scourging, and buffeting, and the Cross, and death, through the intercessions of His most pure Mother, of our holy and God-bearing fathers, and of all the saints, have mercy on us and save us, for He is good and the Lover of mankind.