Why are there differences in how the Bible's writers expressed God's message?

I believe He planned the Bible as a book for all humanity, for all time. To touch the hearts and minds of so many people, in all the varied circumstances and periods of time, it makes sense that God would use differently skilled writers, with unique perspectives and styles. He could have dictated the entire Bible, verbatim, chapter by chapter, verse after verse, to the writers, but that doesn’t sound like God.

I can imagine God placing a vision of the message in the writer’s mind and allowing him to develop the text, using his God-given talents. It's still God's message, but one with a human touch. It's pretty cool, when you think about it. The Bible comes from God, and it also comes from people. He allowed us the privilege of helping shape it. That’s not to say He gave up control. Perhaps He simply allowed for poetic license, within reason.

The Bible is full of illustrations and instances showing the differences in people. Similarities, too, of course, but with respect to the former, we can probably assume one reason God allowed different expressions of His message was to get the idea across that the Bible wasn’t meant for a small number of people, or just one race. It’s for everyone. Different periods, ages and cultures respond differently to the same words and phrases, or vice-versa.

What may leave me awed and amazed, for example, might sound like business as usual to Joe Blow in Oslo. Maybe you read a passage that settled a question you’d been asking for the past five years. The same group of verses may have provided insight on a completely different question for a group of believers two hundred years ago. The point is, one person’s method of expression can only touch so many people. God wants us all to be touched by the Bible because it’s one way of showing Himself to humanity.

The Bible is also His way of presenting us with a top-notch guidebook on how to deal with other people, how to handle stress, temptation, anger, success, poverty, illness, heartache, and other unchanging elements of life on Earth. People will always need to know how to deal with other people honestly and fairly, for example, and "right" isn't always obvious.. When we read the personal stories in the Bible, it's not simply a "how to" or "what not to". We read about how a person dealt with an issue. Again, the writings of several people and each one's unique perspective will touch more people than the words of just one.

The men and women in the Bible weren’t just make-believe characters in a play. Their troubles weren’t just the stuff of a fiction writer’s fantasy. We can identify with people like the Prodigal Son because his circumstances are timeless. That's what keeps the Bible relevant now and why its content will never be seen as obsolete or outdated.

God might want us to see that sometimes two people have different perspectives on the same event and both are right. Two bkks in the New Testament, Matthew and Luke, describe similar events, but from two different writers. Unique expressions and styles of course, help to define writers. It would be hard to confuse Paul's letters with David's Psalms, for example. I'd just like to know who wrote the Book of Job. Talk about unique! . My guess is that the only one who could have written Job is whoever did. (Read it and you'll see what I mean)

Of course, I'm not exactly qualified to speak for God, but thanks Alatea, your kind words are much appreciated. These are just a few points that I thought answered the question. There are undoubtedly other, different answers besides mine, but that's no surprise, considering what the questions is asking.(Not that I'm confused about Answerbag answers and the Bible, and which one we're in now LOL)