Pope To UK: Deeply Sorry, Ashamed Of Sex Abuse
Benedict also said he hoped that the church would be able to use its contrition to purify itself from the "sins" of its ministers and be able to renew its commitment to educating the young.
Benedict confronted the abuse scandal head-on during his homily, a day after six people were arrested in an alleged terrorist plot against him. They remained in custody Saturday.
The sex abuse scandal has clouded Benedict's four-day state visit to this deeply secular nation with a centuries-old history of anti-Catholic sentiment. Polls have indicated widespread dissatisfaction in Britain with the way Benedict has handled the crisis, with Catholics nearly as critical of him as the rest of the population.
The pontiff issued his comments in the seat of British Catholicism amid speculation that he might meet with British abuse victims, and as abuse survivors and others opposed to his visit prepared a march Saturday afternoon in London's Hyde Park to demand more accountability.
"I express my deep sorrow to the innocent victims of these unspeakable crimes, along with my hope that the power of Christ's grace, his sacrifice of reconciliation, will bring deep healing and peace to their lives," Benedict said.
He said he acknowledged the shame and humiliation all the faithful had suffered as a result of the sins and said he hoped "this chastisement will contribute to the healing of the victims, the purification of the church and the renewal of her age-old commitment to the education and care of young people."
On his way to Britain, Benedict acknowledged to reporters that the church had failed to act quickly or decisively enough to stop the abuse and prevent it from recurring. Victims groups have dismissed such comments as hollow, saying they want the church to turn over information it has about suspected pedophiles in its ranks.
Benedict went ahead with a busy day Saturday, his third in Britain, as six men arrested in an alleged terror attempt against him remained in police custody. Police staged a pre-dawn raid Friday on a garbage depot and arrested five street cleaners; a sixth person was arrested later in the day.
Police say they were detained under the Terrorism Act "on suspicion of the commission, preparation or instigation of acts of terrorism."
The Vatican has said the pope was informed of the arrests, was calm, and no changes to his itinerary were planned.
Benedict began his day by meeting with British Prime Minister David Cameron, deputy Prime Minister Nick Clegg and opposition leader Harriet Harman.
A day earlier, he addressed Britain's political, financial and cultural elite in Westminster Hall, for centuries the seat of British political life. He demanded that religion have a voice in public policy and Christians in public roles be allowed to follow their consciences.
This program aired on September 18, 2010. The audio for this program is not available.