This paper is drawn from a thesis submitted to the Kimmage Development Studies Centre, Dublin, in partial fuli lment of the requirements for the degree of MA in Development St udies. The paper relects on the characteristics of faith-based organ isations – with a particular focus on evangelical faith-based organis ations - and the roles of these characteristics in shaping views and pract ices of development, particularly among ield workers. What people believe in affects what they do and how they do it. Faith therefore, expectedly, affects development practice . But a shared faith on its own does not necessarily guarantee a coheren t approach to development among staff, as this case study of Norw egian Lutheran Mission (NLM) illustrates. Despite the common denom inational and cultural background, there were in this particular organisational environment still signs of unclear or dual purposes , and somewhat fragmented approaches to development thinking in th e ield. Deining the role of faith in forging development views very much seemed to be up to the individual ield worker. Faith-based organisations may at irst glance seem t o have an advantage compared to mainstream NGOs, in terms of being made up of a relatively ideologically homogenous staff b ody. However, a faith-based organisation (FBO) that wants to ensure a coherent and consistent approach to development thinking cannot assume this will happen naturally. It has to work hard if it wishes to forge a common understanding of purpose and practice. Within this particular organisational environment – the evangelical mission organisation - the hybridity of being ‘both ’ a development agency and an evangelising organisation seems to be particularly at the core of understanding how views and practices a re shaped. In this paper, the challenges presented by this hybridity a re addressed and it is hoped that these considerations will be of re levance for all faith based organisations.