The article adds to an understanding of organizational commitment (OC) by examining how the con- struct varies between church volunteers (N = 89) and for-profit (N = 218) employees in Norway. The study used a non-experimental field-based methodology to analyze data collected cross-sectionally through self-administered questionnaires. A series of two-way analyses of covariance (ANCOVA) was performed to test whether OC differed by type of organization, reporting higher levels of normative commitment (NC) and affective commitment (AC) in ecclesial organizations than in their for-profit counterpart. In addition, a series of hierarchical multiple regression analyses were performed to test whether calling and perceived organizational support (POS) were predictors of OC in both types of organizations. The results confirm previous research showing that POS is an antecedent of NC and AC in for-profit organizations, and expand current commitment theory by showing that this is also the case for AC among church volunteers. The predictive power of calling on commitment was found to be weak in both types of organizations. The limitations of the study are indicated, and suggestions for practice and future research are provided.

Keywords: organizational commitment, perceived organizational support, calling, volunteer, church, Norway