VATICAN CITY  - Pope Benedict XVI called on the Church and its faithful on Sunday to "renew themselves" as tens of thousands of pilgrims and tourists attended his penultimate Angelus prayers. "The Church calls on all its members to renew themselves... which constitutes a fight, a spiritual battle, because the evil spirit wants us to deviate from the road towards God," he told the crowds from his window overlooking St Peter's Square. Families with young children, pensioners and nuns packed into the square in the sunshine said they had come to pay their respects to the pope, make their goodbyes or share in a historic event ahead of the 85-year old's resignation. Groups of scouts held up banners reading "We have loved you so much!" and "We will be with you... always" and said they wanted to show Benedict that his shock decision to stand down on February 28 had not shaken their faith in him. "He has done it for the good of the Church, and will keep serving us. He is retiring to pray - and God knows we need his prayers!" said Germana Blaiotta. A serene-looking Benedict waved to the crowds and thanked them for turning out in such large numbers, calling it a "sign of affection and spiritual closeness", as the onlookers called out "viva il papa" (long live the pope). Benedict's brother said in an interview with Spanish newspaper ABC published Sunday that the pontiff was seeking greater tranquility with his retirement.