Vatican City • At a Mass in the Sistine Chapel on Friday attended by the cardinals who had elected him their leader the day before, Pope Leo XIV spelled out his missionary vision for the church. But first he told the cardinals that his leadership would continue to depend on them.

Pope Leo XIV, the first American leader of the Catholic Church, previously known as Robert Francis Prevost, returned to the Sistine Chapel the day after his election to deliver a mass for the College of Cardinals, where he described his role as both a cross to bear and a blessing and urged church leaders to make themselves “small.”