As scholars like Roger Stronstad and James Shelton have added to this discussion, these men have also stood on Ervin's shoulders.
Through his friendship with David du Plessis, Ervin was invited to participate in the Pentecostal-Roman Catholic Dialogues.
Ervin's Pentecostal theology, his scholarly and formal communication style, and ecumenical beliefs made him the exception to the rule.
"A number of Dr. Ervin's teaching addresses are preserved on reel tapes which are on file in The Holy Spirit Research Center at Oral Roberts University.
Also catalogued in the Holy Spirit Research Center are three cassette teaching albums, issued under the auspices of Ervin Publications, Tulsa, Oklahoma: Crucifixion and Life (1977), Blessed Are They .
Dr. Ervin's participation in the Roman Catholic -Pentecostal Dialogue in Venice in October, 1980, included the reading of the paper "The Ties that Divide."
Two book manuscripts are in process at this time, tentatively entitled An Exposition of First Corinthians 12:1-11 and A Critique of J. D. G. Dunn's Theology of the Holy Spirit.
Some of the main points from this latter work will be discussed in "Observations on J. D. G. Dunn's Model of Baptism in the Spirit," Faces of Renewal: Studies in Honor of Stanley M. Horton presented on his 70th Birthday, edited by Paul Elbert.