This research tested the Spiritual Leadership Model using longitudinal data from a newly formed Apache Longbow helicopter attack squadron at Ft. Hood, Texas. The results provide strong initial support for the SL Model and its measures. A methodology was developed for establishing a baseline for future organizational development interventions as well as an action agenda for future research on spiritual leadership in general and Army training and development in particular. We conclude that spiritual leadership theory offers promise as a springboard for a new paradigm for leadership theory, research, and practice given that it (1) incorporates and extends transformational and charismatic theories as well as ethics- and values-based theories (e.g., authentic and servant leadership) and (2) avoids the pitfalls of measurement model misspecification.