Today we have to learn all over again that love for the sinner and love for the person who has been harmed are correctly balanced if I punish the sinner in the form that is possible and appropriate. In this respect there was in the past a change of mentality, in which the law and the need for punishment were obscured. Ultimately this also narrowed the concept of law, which in fact is not only just being nice or courteous, but is found in the truth. And another component of the truth is that I must punish the one who has sinned against real love
Pope Benedict XVI, Light of the World: The Pope, the Church, and the Signs of the Times – A Conversation with Peter Seewald