Abstract: The paper explores the ethical attitude of Christian evangelicals in a church in Britain and how it affects boundary-making of their community. Evangelicals in the case study seek to be accepting of the person and to refrain from being judgemental. The paper distinguishes between the person-centred ‘ethic of compassion’and the norm-centred ‘ethic of purity’. The ethic of compassion consists in accepting another and recognising the dignity of another based on shared humanity. It is a frame of mind that combines moral intention with the emotions of empathy and sympathy. In contrast, the ethic of purity privileges adherence to the moral order of the group over considerations for the person. The ‘compassionate’ frame of mind weakens boundaries, while the ‘pure’ frame of mind reinforces them. The boundaries of a community result from the interplay of the two ethics.