In a Sistine Chapel Mass with cardinals on his first day as Church leader, the pontiff said: “If we do not confess to Christ, what would we be?
“We would end up a compassionate NGO. What would happen would be like when children make sand castles and then it all falls down.”
Francis is the first Latin American – and the first Jesuit – Pope.
The BBC‘s David Willey, in Rome, says the 76-year-old has already been swift to stamp his style on the papacy.