In the last decade, with the entry of spirituality in the organizational and management research, Spirituality leadership, also, has attracted a considerable amount of attention. The new realm of spiritual leadership, similar to both areas of spirituality and leadership, suffers from a lack of consensus and from variety in definition and impression. Proposed models of spiritual leadership have been quite narrow, leader-centered and universal. They ignored the role of followers and context in leadership equation. In this paper, with a developmental approach, and after using experts'' opinions and surveying in some public organization, we aim to define new construct of spiritual followers and spiritual context, and explore the role of them in leadership effectiveness. The results of this study show that new defined constructs have a significance contribution in the prediction of leadership effectiveness and with simultaneous considering all constructs of spiritual leader, spiritual followers and spiritual context, better than pervious approaches, we can explain spiritual leadership complexities and dynamics.