This research studied the inter-relationship between spirituality at work, attitudinal outcomes, job satisfaction, organisational commitment, job involvement, and a behavioural outcome - job performance. The study purported to establish the mediating role of attitudinal outcomes on the relationship between spirituality at work and behavioural outcome. We employed a survey methodology and standardised instruments to assess the study’s constructs. Employees from information technology, banking, and higher education formed part of the study sample (n=425). We found a positive and significant association between spirituality at work and attitudinal outcomes; we also found a significant association between spirituality at work and job performance. The serial mediating effect of Job Involvement → Job Satisfaction → Organisational Commitment on the relationship between spirituality at work and job performance was established with the aid of PLS-SEM. This study validates the unique relationship of job involvement, job satisfaction, and organisational commitment mediating the relationship between spirituality at work and job performance and posits further workplace spirituality theory growth.