Historically, the Reformed and Charismatic streams have seemed to be almost mutually exclusive. In recent years, this exclusivity has been being challenged by a new generation of Reformed thinkers. This work aims at considering the contribution of John Wimber, the late leader of the Vineyard Churches, to contemporary theological reflection within the Reformed tradition. Taking into account John Wimber’s unique theology of the radical middle, which is somewhere between Pentecostal and Evangelical, this book asks whether Wimber may be a possible alternative source for the contemporary Reformed Churches as they approach ministry and mission in the twenty-first century. Written from a confessional Presbyterian context in Northern Ireland, Word and Power places Wimber in his theological context and asks whether Wimber’s view of power evangelism, discipleship formation, and ministry training might be a model that Reformed Churches–and Presbyterians in particular–could adopt for their ecclesiology today.