"...the mysterious process by which the divine causality worked through the human prophets without destroying their individual personalities and styles, to produce divinely authoritative writings." - Norman Geisler
"... a supernatural influence exerted on sacred writers by the Spirit of God, by virtue of which their writings are give Divine trustworthiness." - B. B. Warfield
"...that supernatural influence of the Holy Spirit upon the Scripture writers which rendered their writings an accurate record of the revelation or which resulted in what they wrote actually being the Word of God." - Millard J. Erickson