It is important that the actions of the priests and the Church authorities involved in the abuse scandal explicitly goes against biblical and Catholic Church teachings. It means that the actions are very clearly wrong and if there is a God, then those involved will be severely punished. The teachings of the Bible and the Church are greater than the actions of the corrupt scum who abuse the Churches power. Unfortunately, there was and are people who will go unpunished for their disgusting actions.
There is more than just a 3000 year old book guiding the Church. There is also the Catholic Catechism which was revised in 1992.
From the Catholic Catechism:
2353 Fornication is carnal union between an unmarried man and an unmarried woman. It is gravely contrary to the dignity of persons and of human sexuality which is naturally ordered to the good of spouses and the generation and education of children.
Moreover, it is a grave scandal when there is corruption of the young.
2356 Rape is the forcible violation of the sexual intimacy of another person. It does injury to justice and charity. Rape deeply wounds the respect, freedom, and physical and moral integrity to which every person has a right. It causes grave damage that can mark the victim for life. It is always an intrinsically evil act.
Graver still is the rape of children committed by parents (incest) or those responsible for the education of the children entrusted to them.
http://www.vatican.va/archive/ENG0015/__P85.HTM