As western society becomes increasingly pluralistic, nurses are confronted by fundamental controversies, such as those moral, philosophical or religious in nature One strategy to deal with such pluralism is to dismiss a nurse's fundamental moral, philosophical or religious commitments as unprofessional bias In this paper, however, I would like to analyse the presence and function of religious commitment, in particular to see if it could have a justified and relevant function in nursing care This function will be elicited by interpreting nursing care as a practice and applying a certain theory of theorizing, focusing on the function of ‘control beliefs’, of which professionalism is one particular set