During the course of the reading, the Congregation sings hymn verses to respond to the events of the text. Most liturgical churches hold some form of commemoration of the Crucifixion on the afternoon of Good Friday. Sometimes, this will take the form of a vigil from noon to 3:00 pm, the approximate time that Jesus hung on the cross. Sometimes there will be a reenactment of the Descent from the Cross; for instance, at Vespers in the Byzantine (Eastern Orthodox and Greek-Catholic) tradition. The Roman Catholic tradition includes specific prayers and devotions as "acts of reparation" for the sufferings and insults that Jesus endured during his Passion. 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. Pope John Paul II referred to acts of reparation as the "unceasing effort to stand beside the endless crosses on which the Son of God continues to be crucified". Several non-liturgical devotions have been developed by Christian faithful to commemorate the Passion. The Stations of the Cross are a series of religious reflections describing or depicting Christ carrying the cross to his crucifixion. Most Roman Catholic churches, as well as many Anglican, Lutheran. and Methodist parishes, contain Stations of the Cross, typically placed at intervals along the sidewalls of the nave; in most churches, they are small plaques with reliefs or paintings, although in others they may be simple crosses with a numeral in the center. The tradition of moving around the Stations to commemorate the Passion of Christ began with Francis of Assisi and extended throughout the Roman Catholic Church in the medieval period. It is most commonly done during Lent, especially on Good Friday, but it can be done on other days as well, especially Wednesdays and Fridays. The Passion Offices were the special prayers said by various Roman Catholic communities, particularly the Passionist fathers to commemorate the Passion of Christ.