This article offers a systematic characterization of abuse of conscience in order to its typification as a canonical crime. We begin exploring the study of conscience manipulation in moral theology after Vatican II as an important background for the understanding of abuse of conscience in more recent studies. The core statement of this study is the definition of abuse of conscience and its gravity. This kind of abuse is set within care relationships, where the abuser steps over the limits of his ecclesial mediation: he appropriates himself of God’s own authority. This study builds on this literature to understand abuse of conscience as a specific type of spiritual abuse in catholic settings. We understand this is absolutely necessary for justice and reparation towards victims.