This study examined the relationships between perfectionism, scrupulosity, intrinsic spirituality, attachment to God, and psychological well-being among 547 members of The Church of Jesus Christ of Latter-day Saints (LDS). Maladaptive perfectionism was positively associated with scrupulosity and anxiety about God. Scrupulosity was positively associated with anxiety about God and avoidance from God. Intrinsic spirituality significantly mediated the link between scrupulosity and avoidance from God. Additional correlations are presented among maladaptive perfectionism, scrupulosity, anxiety about God, avoidance from God, and self-esteem. Implications for addressing maladaptive perfectionism, scrupulosity, attachment to God, and psychological well-being among a religious population are discussed.