The Papal Oath is an oath that, according to some Traditionalist Catholics, by which the popes of the Catholic Church swore, during their Papal Coronation, never to innovate or change anything that has been handed down to him.
The Papal Oath, also known as the oath against modernism, was an oath traditionally sworn by the popes of the Catholic Church during their Papal Coronation. The oath-taker vows never to innovate or change anything that has been handed down to him.