Abstract
For Ivan Illich, a twentieth-century critical thinker driven by deep faith, sin is a denial of the dignity of another who calls out to me, and a betrayal my own vocation to respond, which were revealed by the Incarnation and the Gospel. Illich thus holds that the criminalization of sin, that is to say, its transformation into a violation of Church law through the imposition of compulsory confession in the thirteenth century, is a perversion of what has been opened by the Gospel. This article explains Illich’s conception and explores its strength, not as historiography of the past, but as carrying a unique resonance with the present.