This contribution responds to the unbearable but undeniable tension between the
ecumenical movement and the Pentecostal movement by exploring the doctrinal
differences in this regard. More specifically, the aim is to understand the challenges
posed to the ecumenical movement by the emphasis on Spirit baptism in Pentecostal
pneumatology. It is argued that this raises questions around the relationship
between Christ and the Spirit and between the Father and the Spirit for ecumenical
theology and Pentecostal theology alike.