The mode or precise manner of divine inspiration is not spelled out. The crucial point of the biblical claim to authority is that God is the source who breathes out his word. It is clear from a study of the Bible itself that the authors’ individual styles remain intact. The inspiration of the Bible refers then to the divine superintendence of Scripture, preserving it from the intrusion of human error. It refers to God’s preserving his Word through the words of human authors.
Sproul, R.C.; Grace Unknown: The Heart of Reformed Theology; Baker Books; Grand Rapids, MI; copyright 1997; p. 45