J.H.King was one of the most highly respected men of the early Pentecostal movement. As a leader in first the Fire Baptized Holiness Church and then the Pentecostal Holiness Church he was able to move across the country, and the globe, to witness and share his faith firsthand. This volume,From Passover to Pentecost, written in 1911 is noted as being an important early explanation of the pentecostal experience and as such a formative work in Pentecostal Holiness theological development (Synan, The Century of the Spirit, pg. 111).
King's work presented a clear theology of grace symbolized in the Passover and fully manifested through the work of the Holy Spirit at the New Testament Pentecost portrayed in the Book of Acts. As a theology, it is clear was a keen Bible scholar able to illuminate the text with knowledge of Greek and familiarity with the traditions of Christian theology.