Evangelistic Trialogue

The communication process in all gospel witness is a trialogue....The assortment of Greek lexemes that cluster around the New Testament concept of witness (Greek: martus) all share in common the essential activity of transmitting a message to an audience. It is foundational for our methodology to establish that this transmission--this communication process--is communication among three persons: the human evangelist, the unbelieving sinner, and the triune God.

--Brian A. DeVries, "The Evangelistic Trialogue: Gospel Communication with the Holy Spirit," Calvin Theological Journal 44, pg. 52.