Based on several years of fieldwork, this article analyzes the awakening of ethnicity in Europe through the historical case of The Church of Pentecost of Ghana, an “indigenous” and transnational Church. The Church of Pentecost, now established in fifteen European countries, encompasses a community primarily made up of Ghanaian migrants. Unlike the case in the colonial period, which saw the evangelization of Africans and the training of “Black pastors”, the Church of Pentecost is now moving into the evangelization and “rechristianisation” of White Europeans. What role, then, does the Church play in these communities of migrants, and what is their response to a context of tension between the need for identity and the need to integrate socially to European societies?