On October 27, 2011, 25 years after the first meeting of Pope John Paul II with representatives of the world's religions in Assisi, Pope Benedict XVI and leaders of other world religions gathered in the same place for a "Day of Reflection, Dialogue and Prayer for Peace and Justice in the World." In his address in the Basilica of St. Mary of the Angels (see picture), the Holy Father explained that true religion is not a cause of violence, and that, on the contrary, violence actually comes from the absence of God:
We know that terrorism is often religiously motivated and that the specifically religious character of the attacks is proposed as a justification for the reckless cruelty that considers itself entitled to discard the rules of morality for the sake of the intended "good". In this case, religion does not serve peace, but is used as justification for violence.
The post-Enlightenment critique of religion has repeatedly maintained that religion is a cause of violence and in this way it has fuelled hostility towards religions. The fact that, in the case we are considering here, religion really does motivate violence should be profoundly disturbing to us as religious persons. In a way that is more subtle but no less cruel, we also see religion as the cause of violence when force is used by the defenders of one religion against others. The religious delegates who were assembled in Assisi in 1986 wanted to say, and we now repeat it emphatically and firmly: this is not the true nature of religion. It is the antithesis of religion and contributes to its destruction. (…)
As a Christian I want to say at this point: yes, it is true, in the course of history, force has also been used in the name of the Christian faith. We acknowledge it with great shame. But it is utterly clear that this was an abuse of the Christian faith, one that evidently contradicts its true nature. The God in whom we Christians believe is the Creator and Father of all, and from him all people are brothers and sisters and form one single family. For us the Cross of Christ is the sign of the God who put "suffering-with" (compassion) and "loving-with" in place of force. His name is "God of love and peace" (2 Cor 13:11). It is the task of all who bear responsibility for the Christian faith to purify the religion of Christians again and again from its very heart, so that it truly serves as an instrument of God's peace in the world, despite the fallibility of humans.
If one basic type of violence today is religiously motivated and thus confronts religions with the question as to their true nature and obliges all of us to undergo purification, a second complex type of violence is motivated in precisely the opposite way: as a result of God's absence, his denial and the loss of humanity which goes hand in hand with it. The enemies of religion — as we said earlier — see in religion one of the principal sources of violence in the history of humanity and thus they demand that it disappear. But the denial of God has led to much cruelty and to a degree of violence that knows no bounds, which only becomes possible when man no longer recognizes any criterion or any judge above himself, now having only himself to take as a criterion. The horrors of the concentration camps reveal with utter clarity the consequences of God's absence.
Yet I do not intend to speak further here about state-imposed atheism, but rather about the decline of man, which is accompanied by a change in the spiritual climate that occurs imperceptibly and hence is all the more dangerous. The worship of mammon, possessions and power is proving to be a counter-religion, in which it is no longer man who counts but only personal advantage. The desire for happiness degenerates, for example, into an unbridled, inhuman craving, such as appears in the different forms of drug dependency. There are the powerful who trade in drugs and then the many who are seduced and destroyed by them, physically and spiritually. Force comes to be taken for granted and in parts of the world it threatens to destroy our young people. Because force is taken for granted, peace is destroyed and man destroys himself in this peace vacuum. The absence of God leads to the decline of man and of humanity.