I know this topic isn't extraordinarily original, but nevertheless I thought I'd write a few thoughts about it.
Many Christians say that the Bible is the "perfect word of God", the source of absolute truth and morality, and which teaches us what is it that God wants from us and how we can be saved. Most of Christianity states that while it's not directly written by God, it's nevertheless directly inspired by God and contains exactly what God wants it to contain, no more, no less. (And in fact several passages warn about changing anything of its contents, implying that it's perfect as it is.)
However, if you think about it, the Bible is really, really poorly formatted in order to convey God's will and commands. In order to form a coherent set of basic tenets of the Christian faith, you have to take bits and pieces from here and there, individual passages and excerpts from wildly different locations from all around. There's no consistency, order or logic to it, and nothing forms a well-ordered hierarchy. The "will of God", all the basic tenets and commands, all the morality, is randomly placed and interspersed with unrelated narrative, anecdotes, fables and aphorisms, which often have little to nothing to do with them.
You can see this extremely well if you listen to typical sermons. The preacher will often quote the Bible to support his sermon, and the passages will invariably be from wildly different locations in the Bible, with no connection to each other, and no well-defined order.
Surely if the Bible were the word of an omniscient, omnipotent god, his message to us telling what we should do, he could have formatted it in a much clearer and unambiguous way, grouping different categories (such as the basic tenets of faith, the basic rights of people, the commandments, life instructions, historical background and narrative, aphorisms and so on) neatly into sections and subsections in a consistent and hierarchical manner. This isn't even a question of language and its expressiveness thousands of years ago. The expressiveness of the language doesn't stop the text from being ordered and formatted in a logical manner. (In fact, if the Bible were in a clear and strictly hierarchical format like this, it would give more credence to the claim that it is the word of an omnipotent god. Of course it's not impossible that people would have written such a thing even back then, but at the very least it would be a point in favor of the text being actually divinely inspired rather than being against it, like it is now.)
As it is now, every person can pick the bits and pieces that they want and form a theology of their own. No wonder there are 30000+ denominations of Christianity in the world.