section_path: Papacy (2025–present)/Inaugural acts
section_name: Inaugural acts
paragraph_text: Inaugural acts
  
  On May 9, the day after his election, Leo celebrated his first Mass as pope in the Sistine Chapel before the assembled College of Cardinals. During the Mass, he preached against the lack of faith in the world, and spoke of a church that would act as a "beacon that illuminates the dark nights of this world". Media reported that Leo would take up permanent residence in the papal apartments in the Apostolic Palace rather than in the Domus Sanctae Marthae where Francis lived.
  
  Leo's inauguration Mass was held on May 18 in St. Peter's Square. During the Mass, he received the pallium and his Ring of the Fisherman before 12 representatives of the people of God, including cardinals and bishops, who vowed obedience to the new pope. On May 25, he was formally installed as Bishop of Rome in a ceremony at the Archbasilica of Saint John Lateran.