The problem with religious reasons is not whether they should be present in the public sphere but how they should be present. Political theorists such as Jeremy Waldron, Juergen Habermas, and Christina Lafont have favored two approaches to making religion legitimate in the public sphere. They have either tried to work out the conditions under which religious reasons can contribute to public sphere in a fruitful way or they have drawn attention to the moral content of religious principles. However, I argue that the latter approach relies too heavily on the propositional content of religious arguments to the detriment of investigating how they are politicized in the public sphere. It is my conviction that without looking at how given religious morality is politicized, a false moral consensus is manufactured, which given the motivational pull of religion can be dangerous. Furthermore, the article makes a case for a more realistic idea of a public sphere where other comprehensive doctrines such as feminism or economism are taken into account as well. Moreover, the evaluation of religious reasons should include their relationship to a given background political culture, which will increase a critical edge of a political theory.