Martin Luther rejected the claim of the Catholic Church that the Pope is divinely appointed head of Christendom. Luther was strongly opposed to pope Boniface VIII’s claim in the bull, "Unam Sanctum" that no one can be saved unless he submits to the Roman Pope. Arbitrary and unlimited powers had made the Catholic Church corrupt and morally bankrupt; Martin Luther strongly raised his voice against this corruption, much to the chagrin and anger of the Catholic Church.
