The relationship between religion and trust is complex and there is little consensus on why, in general, religious people appear to be more trusting than their unaffiliated peers. Most research on religion and trust focuses on differences between traditions and denominations, which offers rather limited insight into the genesis of trust for religious persons. In this study, we draw on recent theoretical developments in social psychology to explore how specific patterns of social interactions within congregations enhance within‐congregation trust among members to the benefit of both churches and individuals. Using survey data from the Portraits of American Life Study, we find that the positive relationship between religiosity and trust is driven less by religious beliefs or practices and more by particular characteristics of micro‐level processes that occur in churches (e.g., closeness of relationships to religious leaders, density of congregational ties, and both giving and receiving aid from other congregation members). In light of research on social learning and trust, we also discuss the potential benefits of this particularized trust for individuals’ levels of generalized trust.