Olli-Pekka Vainio (DrTheol University of Helsinki) is University Lecturer of Systematic Theology at the University of Helsinki, Faculty of Theology. He is author of multiple books, including Justification and Participation in Christ: The Development of the Lutheran Doctrine of Justification from Luther to the Formula of Concord (1580) (Brill, 2007) and Beyond Fideism: Negotiable Religious Identities (Routledge, 2021).