This is a common mis-conception...The Holy Spirit didn’t use them as some secretary, dictating to them what He wanted written.
I did not see CB saying SCripture was dictated, but Pope Leo XIII did:
...Sacred Scripture is not like other books. Dictated by the Holy Ghost, it contains things of the deepest importance, which in many instances are most difficult and obscure.
Not that other RC teaching does not contradict the idea that inspiration is dictation, as it does, while confusing inspiration with the Cath charism of infallibility is another error.
Writers of Holy Writ were inspired of God when writing, and thus their writings are infallible Truth, but that is not the RC charism of infallibility, which would promise such writers formulaic infallibility.
Under the latter, the pope does not speak under Divine inspiration when speaking an infallible statement, but is said to possess a gift of infallibility that will always prevent him from erring whenever He speaks universally in a certain manner on faith and morals.
This can only ensure he does not err, but which does not make God the author of the teaching as He is with Scripture, and if it is true (if it was) yet it lacks the power of the wholly inspired word of God.
For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart. (Hebrews 4:12)
This issue is actually one of the core issues I examined before returning to the Church. The Catechism was helpful in this regard (para 106, that’s what I was thinking of when I was posting before on this subject) however the forums at Catholic Answers was also helpful.
You might find this post of interest http://forums.catholic.com/showpost.php?p=10337477&postcount=11
However the entire thread there is useful for this.
But returning to the post cited, the main point is this:
The term dictated can be understood in a couple ways. There is dictation in business, such as reciting something you want someone else to write word for word. Or there is dictation as in a non-mechanical steering. We see this in sports, for example, when we say, “Team X dictated the pace of the game.”
In the 1994 Magisterial text Interpretation of the Bible in the Church, we find this:
The basic problem with fundamentalist interpretation of this kind is that, refusing to take into account the historical character of biblical revelation, it makes itself incapable of accepting the full truth of the incarnation itself. As regards relationships with God, fundamentalism seeks to escape any closeness of the divine and the human. It refuses to admit that the inspired word of God has been expressed in human language and that this word has been expressed, under divine inspiration, by human authors possessed of limited capacities and resources. For this reason, it tends to treat the biblical text as if it had been dictated word for word by the Spirit. It fails to recognize that the word of God has been formulated in language and expression conditioned by various periods.
The magesterial document referenced is found here http://www.ewtn.com/library/curia/pbcinter.htm
Thanks,