Opus Dei, "the work of God" is the translation of the liturgy according to the doctrine of the Catholic Church. At first glance, it refers to the exercise of priestly ministry separate from the praxis that governs the other spheres of life. But there is an apparent separation only enclosing an arcane. It is in this as archaeological research focuses Giorgio Agamben. One way of philosophizing that tastes like no other lighting in the common concepts, hidden, revealing traces of unsuspected affiliations. Getting to the essence of the "mystery of the ministry" means then discover, after returning to tour the theological elaboration process that goes back to early Christianity, the immense importance of officium-the Latin term for "liturgy" - in the very conception of modernity in the West. The idea of ​​being, ethics, politics and economics have no more than the officium paradigm. Official militant, human action is set according to the model of a priest, in which what is man comes down to what man must do. A strategy in which the thought of Agamben seismographic records the first cracks