Emotional security theory explains effects of interparental conflict (IPC) on family relationships. Further, relations between religiosity and marriage have been investigated. The aim of the current study is to establish a relationship between these two separate lines of research. We examined perception of IPC and emotional insecurity among emerging adults and how personal and perceived parental intrinsic religiosity (IR) moderated the association between IPC and emotional insecurity. First, the higher the IPC, the higher the scores on emotional insecurity. Second, moderator effects were found for both personal and perceived paternal IR. The findings implicated a protective role IR against IPC.