In this article, I examine the relation of religious language and public debate within the context of postsecularism and defend a falsificationist model. I argue that the postsecular public sphere ought to problematize four characteristics of modern thinking; the exclusion of truth and religious language, the asymmetry between religious and secular language, the essentialization of the secular and the religious and, lastly, the exclusivity and exhaustiveness of the secular and religious as categories. Based on these four problematizations, I defend a (...) falsificationist model for the admission of religious language in the public sphere and argue that we ought to allow citizens the right to use the language of their choice in the public sphere, provided that they also provide in their preferred language ‘conditions of falsifiability’, that is, those circumstances upon which the speaking party would accept their argumentation as void. (shrink)