This study examines the ways an evangelical theology informs the praxis of chaplaincy for evangelical military chaplains while also addressing the epistemological and ontological foundations that form a theoretical framework for the praxis of an evangelical military chaplain. Using Kathy Charmaz's constructivist grounded theory, this study used the interviews of twenty evangelical military chaplains to produce initial codes that led to focused codes which produced theoretical codes. From this coding, the themes of identity based in Christology and praxis focused on caring, comforting, and serving suggested a motif of hospitality as an approach to understanding the praxis of evangelical military chaplains. Through casual hospitality, evangelical military chaplains reflect Christ living in them as they care, comfort, and serve the military members and others with whom they are entrusted. The constructivist grounded theory produced by this study is as follows: Evangelical theology informs the praxis of chaplaincy for evangelical military chaplains through addressing the epistemological and ontological foundations that form a theoretical framework for the praxis of an evangelical military chaplain.