The Archbishop of Canterbury, the Most Rev Justin Welby, has disclosed that he questions whether God exists.
Britain's most senior churchman, who is effectively the leader of almost 80 million Anglicans worldwide, admitted that there are moments when he asks himself "Is there a God?" and "Where is God?"
He also said Christians cannot explain why suffering exists in the world but that the answer was faith.
His remarks came in an interview conducted as part of a service at Bristol Cathedral, during a visit to the diocese.
Asked whether, despite his high profile as a religious leader, he ever struggles with doubt, the archbishop said: "Yes I do.