Pilgrimage into Pentecost explores the life and legacy of Howard M. Ervin, Th.D., chronicling Ervin's pilgrimage from his beginnings as Baptist pastor to his global influence as a Pentecostal leader. His exegetical theology led him to advocate a distinctively Lukan theology of the Holy Spirit, and he became for a while the leading scholarly apologist for the classical Pentecostal doctrine of Spirit baptism. Ervin's scholarship spurred fruitful theological debate on the contemporary work of the Holy Spirit, especially with New Testament scholar James D.G. Dunn, while his extensive ecumenical pastoral ministry demonstrated the Spirit's work of unifying the body of Christ. Pilgrimage into Pentecost not only pays well-deserved tribute to a pioneer of Pentecostal scholarship but also offers his devout scholarship and distinguished forty-year teaching career at Oral Roberts University (ORU) as an example for others.