Without previous thinking, planning, imagining...the apostles will receive directly from God just what to utter. It will come into their minds just as it is needed, and thus they will utter it aloud. The apostles, indeed, make utterance, and yet they do not, for their act is due to the Holy Spirit, so that most properly He is the one who does this uttering. Everything that is mechanical, magical, unpsychological is shut out. The apostles will not be like the demoniacs – their organs of speech and their very wills being violated by a demon. Absolutely the contrary: mind, heart, will operate freely, consciously, in joyful, trustful dependence on the Spirit’s giving, who enables them to find just what to say and how to say it down to the last word, with no mistake or even a wrong word due to faulty memory or disturbed emotions occurring. This, of course, is Inspiration, Verbal Inspiration.
R.C.H. Lenski