From Crux:

ROME – Opening the holiest period each year on the Christian calendar, Pope Francis on Palm Sunday spoke about the battle between God and the “prince of this world,” saying those who follow Jesus are called to fight temptation and evil with silence and humility, not by being “superstars.”

The pontiff said that just as Jesus was welcomed joyfully into Jerusalem, the devil had a “card up his sleeve: the card of triumphalism.” “One subtle form of triumphalism is spiritual worldliness, which represents the greatest danger, the most treacherous temptation threatening the Church,” Francis said, quoting the late French theologian Father Henri de Lubac: “Jesus destroyed triumphalism by his Passion.”