When the innocence of children is “trampled upon, broken, sullied, abused, and destroyed,” then “the earth becomes arid and the whole world sad,” the Vatican’s top sexual abuse prosecutor said this morning in Rome.

Monsignor Charles J. Scicluna indirectly critiqued the clerical culture in which abuser priests were routinely given second chances.

Christian friendship, Scicluna said, is “submitted to the law of God,” so if a member of the church is an “occasion of sin,” then a believer “has no other choice … but to cut this tie.”

Weeding out abusers, Scicluna implied, is a form of “divine surgery” intended to save the body by amputating a diseased part.

Scicluna, a Maltese priest who serves as Promoter of Justice in the Congregation for the Doctrine of the Faith, spoke as part of a service of reparation for abuse committed by priests and for healing within the church organized by students at Rome’s pontifical institutions. The service took place this morning in St. Peter’s Basilica, at the Altar of the Chair of Peter.

Scicluna delivered a homily for the service. Widely considered the Vatican’s top expert on the sexual abuse crisis, Scicluna rarely speaks in public – making his comments this morning all the more significant.

Tapped by then-Cardinal Joseph Ratzinger, today Pope Benedict XVI, to handle the canonical response to charges of sexual abuse against priests, Scicluna is widely seen as the architect of the more aggressive approach to the crisis which emerged in the Congregation for the Doctrine of the Faith after 2001.

This morning, Scicluna delivered a largely spiritual meditation on the relationship between Jesus and children, saying that “the church, the spouse of Jesus, has always had a special care and solicitude for children and the weak.”

According to the fathers of the church, Scicluna said, a child was “the eloquent icon of innocence.”

In that light, Scicluna argued, destroying the innocence of a child makes the entire earth “arid” and “sad.”

Quoting St. Gregory the Great, Scicluna suggested that such sins are especially heinous when committed by priests.

“After having taken a profession of holiness, anyone who destroys others through words or deed would have been better off if their misdeeds had caused them to die in secular dress, rather than, through their holy office, being imposed as an example for others in their sins. Without doubt, if they had fallen all by themselves, their suffering in Hell would be easier to bear.”

Scicluna contrasted the innocence of children with arrogance and careerism in the church.

“How many sins in the church [have happened] because of arrogance, insatiable ambition, abuse of power and injustices committed by those who abuse their ministry to advance their career?”, Scicluna asked.

He denounced the “futile and wretched motives of vainglory.”

The remedy to such scandals offered by God as the “Divine Surgeon,” according to Scicluna, is to “cut out [disease] in order to heal,” and to “amputate in order to restore health.”

Beyond such drastic measures, Scicluna also proposed the “preventive medicine” of solid formation for future priests, calling on them to be on fire with the faith, making them salt and light for the world.