Pope Francis is aboard his flight bound for Luxembourg, where he will start a four-day apostolic journey in Luxembourg and Belgium, Thursday, Sept. 26, 2024. (Guglielmo Mangiapane/Pool Photo via AP)

Pope Francis, center, speaks to the media aboard his flight bound for Luxembourg, where he will start a four-day apostolic journey in Luxembourg and Belgium, Thursday, Sept. 26, 2024. (Guglielmo Mangiapane/Pool Photo via AP)

Pope Francis, center, speaks to the media aboard his flight bound for Luxembourg, where he will start a four-day apostolic journey in Luxembourg and Belgium, Thursday, Sept. 26, 2024. (Guglielmo Mangiapane/Pool Photo via AP)

The ITA Airways ITY4000 papal plane with Pope Francis and bound to Luxembourg, where the pope will start his four-day visit to Luxembourg and Belgium, takes off from the Fiumicino International airport Leonardo da Vinci, some 30 kilometers south-west of Rome, Thursday, Sept. 26, 2024. (AP Photo/Gregorio Borgia)

Pope Francis arrives at Fiumicino International airport Leonardo da Vinci, some 30 kilometers south-west of Rome, Thursday, Sept. 26, 2024 to board the papal flight to Luxembourg for a four-day visit to Luxembourg and Belgium. (AP Photo/Gregorio Borgia)

Pope Francis, left, arrives in a car at Fiumicino International airport Leonardo da Vinci, some 30 kilometers south-west of Rome, Thursday, Sept. 26, 2024 to board the papal flight to Luxembourg for a four-day visit to Luxembourg and Belgium. (AP Photo/Gregorio Borgia)

Pope Francis arrives at Fiumicino International airport Leonardo da Vinci, some 30 kilometers south-west of Rome, Thursday, Sept. 26, 2024 to board the papal flight to Luxembourg for a four-day visit to Luxembourg and Belgium. (AP Photo/Gregorio Borgia)

The ITA Airways ITY4000 papal plane with Pope Francis and bound to Luxembourg, where the pope will start his four-day visit to Luxembourg and Belgium, takes off from the Fiumicino International airport Leonardo da Vinci, some 30 kilometers south-west of Rome, Thursday, Sept. 26, 2024. (AP Photo/Gregorio Borgia)