Stations of the Cross be conducted personally by the faithful, making their way from one station to another and saying the prayers, or by having an officiating celebrant move from cross to cross while the faithful make the responses. The stations themselves must consist of, at the very least, fourteen wooden crosses, pictures alone do not suffice, and they must be blessed by someone with the authority to erect stations. Pope John Paul II led an annual public prayer of the Stations of the Cross at the Roman Colosseum on Good Friday. Originally, the pope himself carried the cross from station to station, but
Christ Carrying the Cross is defined by tradition as the Via Dolorosa in Jerusalem, although the specific path of this route has varied over the centuries and continues to be the subject of debate. The episode is mentioned, without much detail, in all the canonical Gospels: , , and . Only John specifically says Jesus carried his cross, and all but John include Simon of Cyrene, who was recruited by the soldiers from the crowd to carry or help carry the cross. Modern scholars, following descriptions of criminals carrying crossbars by Plautus and Plutarch, often take the Gospel description as meaning Jesus, then Simon,