Kyung-Chik Han, indeed and not just in name, was the sole pastor who gained the whole Korean churches’ admiration, a patriot who was recognized from not only the Korean government but also the widely acknowledged Korean religious leader. This is confirmed by the fact that Kyung-Chik Han received much recognition from every denomination in Korea and his winning of the Mugunghwa Medal and the National Foundation Medal bestowed by the Korean government. It also is proved by him being the only Korean recipient of the Templeton Prize, reputed as the Novel Prize in the religious field. As Rev. Ji-Il Bang once said, Kyung-Chik Han was the standard of Korean churches’ ministry work. In this study, we will examine his spirituality as an internal conversion which made Kyung-Chik Han’s personalities, and external changes which was resulted into a transformation of the Korean Church through his ministry. Primary sources such as his sermons, autobiography, and lectures were used to analyze his internal conversion. In addition, for the research of the results of his ministry, we will briefly review the church historians’ evaluations. The spirituality of Rev. Kyung-Chik Han is, all things considered, the spirituality of a steward. It comes from his experience under the japanese colonial regime, the experience of the Korean War, and the experience of facing death and deciding to devote himself entirely to God. His spirituality of a steward has several elements: the spirituality of the Word, spirituality of prayer, spirituality of gratitude, and spirituality of love of country. All of these elements formed a unique system of triangular pyramid putting the spirituality of love of the country at the top of the pyramid; individually independent, but also connected with each other. Kyung-Chik Han’s spirituality reached out to the external world, which made evangelical faith and piety more stable in Korean church history. Rev. Han’s spirituality and works affected Korean churches significantly, especially in ecumenical movement and social service, which led Korean churches to be one of the most influential churches in the world.