AbstractThe study uses nationally representative data to examine whether the moral freighting Putnam and Campbell (2010) propose, based on American experiences, may apply to overall British society. Specifically, it tests whether religious service attendance increases religious or secular organizational activities, possibly due to moral freighting that encourages religious congregants to practice their faith, transcending ego boundaries and self‐interest. It is also necessary to determine if engagement in religious or secular organizational activities elevates the degree of religious service attendance, thus forming a bidirectional association. The study employs the maximum likelihood‐structural equation modeling (ML‐SEM) method to verify the proposed reciprocity. The empirical tests confirm that a synergistic reciprocal relationship is established between religious service attendance and religious organizational engagement, and that religious service attendance increases secular organizational engagement. However, secular organizational engagement does not make a bidirectional contribution to religious service attendance.