Why did God use humans to write the Bible? God is recorded in the Bible as doing many things directly: causing floods, making humans, etc. etc. - but chose to have his word written through people instead of imparting his wisdom directly.

It seems like this opens the door for questioning authenticity, fidelity and so on, but I'm not seeing a benefit to counter that - what's the upside in going about it the way he did?
If you created a universe, and you wanted to communicate some important message to the people who lived there, how would you choose to do it?  I can see two possible scenarios:

Give your entire message to one &quot;prophet&quot; to relay the message to the rest of the people.
The obvious problem with this option is that the one &quot;prophet&quot; looks like a lunatic to everyone else, and is impossible to authenticate.  We have such claimed prophets all the time, leading cults, or other sects.  And they are usually considered lunatics, and impossible to authenticate.

Give the message to numerous people, over centuries, and have them each write part of it, in agreement with each other.
This scenario adds a lot of credibility.  If hundreds of authors, spread over geography and time, all share parts of the same message, and all agree with each other, then this is far more credible than a single prophet.


Of course there are a few other options, too, that I can think of:

Go in person, and deliver the message.
Make the message appear miraculously, so that it was unmistakably from you.

But then, the Christian Bible contains both of these, as well.
Your question suggests that this method lacks authenticity, but I can't think of any other way to deliver a divine message that could carry any greater weight of authenticity. How else would you have done it?