In his traditional, end-of-the-year speech to Vatican cardinals and bishops, Benedict said revelations of abuse in 2010 reached "an unimaginable dimension" that required the church to accept the "humiliation" as a call for renewal.

"We must ask ourselves what was wrong in our proclamation, in our whole way of living the Christian life, to allow such a thing to happen," the pope said.

Benedict also said, however, the scandal must be seen in a broader social context, in which child pornography, drug use and sexual trafficking are considered normal by many people.

"The psychological destruction of children, in which human persons are reduced to articles of merchandise, is a terrifying sign of the times," Benedict said.

He said that as recently as as the 1970s, pedophilia wasn't considered an absolute evil but rather part of a spectrum of behaviors people refused to judge in the name of tolerance and relativism.

As an avalanche of cases of pedophile priests came to light, church officials frequently defended their practice of putting abusers in therapy, not jail, by saying that was the norm in society at the time. Only this year did the Vatican post on its website unofficial guidelines for bishops to report pedophile priests to police if local laws require it.

"In the 1970s, pedophilia was theorized as something fully in conformity with man and even with children," the pope said. "It was maintained - even within the realm of Catholic theology - that there is no such thing as evil in itself or good in itself. There is only a 'better than' and a 'worse than.' Nothing is good or bad in itself."

"The effects of such theories are evident today," he said. 

The traditional Christmas speech to Vatican cardinals and bishops is an eagerly anticipated address Benedict uses to focus the church hierarchy on key issues.

Benedict has previously acknowledged the scandal was the result of sin the church must repent for, and make amends with victims.

He repeated Monday the church must do a better job of screening out abusers and helping victims heal.

The sex abuse scandal, which first exploded in the U.S. in 2002, erupted on a global scale this year with revelations of thousands of victims in Europe and beyond, of bishops who covered up for pedophile priests and of Vatican officials who turned a blind eye to the crimes for decades.

Questions were raised about how Benedict himself handled cases both as archbishop in Munich and as head of the Vatican office that handled abuse cases.

Recently, the Vatican released documentation showing as early as 1988 then-Cardinal Joseph Ratzinger sought to find quicker ways to permanently remove priests who raped and molested children in a bid to get around church law that made it difficult to defrock priests against their will.

While Ratzinger was unsuccessful then, Vatican rules now allow for fast-track defrocking. But victims advocates say the Vatican still has a long way to go in terms of requiring bishops to report sex crimes to police and release information and documentation about known pedophiles.

According to Jon Garrido, Owner and CEO of New Mexico News, the major contribution factor to the sex abuse scandal was and remains the lack of transparency. With the mandate for change brought about by Vatican II, the People of God became the Church of God.

Pope John Paul II changed the Church of the people to become the Church of the Roman Hierarchy thus removing transparency from all actions the Church wants to hide from the public.

Unless the Church becomes the People of God, the priests, bishops, archbishops, cardinals and pope will always control the Church and hide any action it deems necessary to maintain control.