This article investigates the current issue of the relationship between Christian and non-Christian religions in multi-religious societies. The philosophical backgrounds of the pluralistic approach are summarised. Subsequently the (Dutch) Reformed confessions are scrutinised for Biblical guidelines which may be helpful in finding a solution for the problem of being Christians in a multi-religious society. It is argued that pluralism must be rejected, while both inclusivism and exclusivism can also not be accepted uncritically.