Abstract: | I shall consider whether morality requires citizens of democratic societies to advance secular reasons in public debates on political questions. Is it wrong to give purely religious reasons in political discussion? I shall argue that the moral acceptability of public religious arguments that are not supported with secular reasons depends on the political context we are discussing, and that often there is nothing wrong with using religious considerations. I shall also discuss the so‐called shared premises requirement in political argumentation. The overall aim of the paper is to clarify intuitions concerning the ideals of public reason on the one hand, and the commitment to religious liberty on the other. |