172 Marc Rastoin remarquable (cf. Lc 9,18-21), mais bien juste avant que Simon ne trébuche. Le primat de Pierre est ici radicalement enraciné dans la prière du Christ et non dans l’enthousiasme de l’apôtre grisé par sa propre réponse, même inspirée par l’Esprit Saint. Il n’en est que plus remarquable et établi sur un fondement plus ferme. 128 rue Blomet Marc RASTOIN F-75015 Paris SUMMARY In the history of research, Luke 22:31-34 has been on the whole judged to be a rather awkward composition consisting of traditional material and Lucan wording. This article intends to show the completely Lucan character of the passage as well as the theological meaning Luke attached to it. In these verses, Luke reveals his literary mastery as well as his theological overall project in Luke-Acts: the primacy of Peter is rooted in the prayer of Jesus Christ himself during His Passion.