In this study, we aimed to map theories and constructs used in psychological research to address LGBTQI and Christian belonging. Through the scoping review method aligned with PRISMA—Extension for Scoping Reviews, we revised 150 studies from the psychological field between 2012 and 2022. We found conflict/negative theories, a turning point from negative to increasingly positive frameworks, exclusively positive perspectives, and broader and challenging theories. There is a gradual shift from conflict/negative perspectives to include positive and broader theories. These findings are critical to base and expand new approaches regarding LGBTQI issues and Christianity in future research.