"Man nurtures the suspicion that God, at the end of the day, takes something away from his life, that God is a competitor who limits our freedom and that we will be fully human only when we will have set him aside," Benedict said.

"There emerges in us the suspicion that the person who doesn't sin at all is basically a boring person, that something is lacking in his life, the dramatic dimension of being autonomous, that the freedom to say 'no' belongs to real human beings," the pontiff said.