SUMMARY In this study I tell the story of the Believers Church Tradition (BCT) on the basis of nineteen Believers Church Conferences (BCC) held between 1967 and 2017. Through a lens, created from the first seminal conference at Louisville 1967, all the papers of these conferences are analyzed to find the defining characteristics of this tradition. This lens consists of the nature of faith, the nature of the church, the nature of hermeneutical discernment and het nature of mission. The proceeds of this are used to establish the ecumenical contribution of this tradition to the ecclesiological debate. The resulting pneumatic and kenotic ecclesiological perspective is applied to the concrete case of mutual baptismal recognition. The central question of this study is how the defining characteristics of the BCT challenge and sharpen the understanding of the church in the ecumenical ecclesiological debate. In order to answer this question, I have split the question into three sub-questions, each of which is answered in a section of the book: 1. What is meant by the Believers Church Tradition and how did it emerge in the twentieth century? (Part I) 2. What are the defining characteristics of the Believers Church Tradition based on the outcomes of the nineteen Believers Church Conferences held between 1967 and 2017? (Part II) 3. What contribution has the Believers Church Tradition to offer to the ecumenical ecclesiological conversation? (Part III) It is shown in Part III that the BCT has its own ecumenical style, summarized in ‘Spirit over structure’. The continuity of the Gospel and the church lies in the living and renewing force of the Spirit, working in every generation anew. Spirit over structure is different from Spirit or structure; it is a statement about priority. I conclude that an approach to ecclesiology from pneumatology is a very helpful contribution here. This pneumatological approach leads to and is reinforced by a kenotic ecclesiology.