Bonhoffer said:
The words of the Bible itself have to be the inerrant word of God because if just one part of the Bible is wrong, then how can we trust the Bible when it says that Jesus will return and that by beleiving in his name we can enter the kingdom of God.
Its either all completly true, or its all false. However there can still be translation and copying errors.
Define "wrong".
What I'm guessing you mean is "unfactual." But why is something that is unfactual neccessarily "wrong"?
Take the phrase "I wandered lonely as a cloud." Does that mean that he floated about as a collection of water droplets, several miles over the earth's surface? Of course not: but that would be the literal interpretation of Wordsworth's line.
Instead, of course, he's using poetic imagery to describe his feeling of isolation. What he says is "unfactual;" but is it wrong? Millions who've read the poem "Daffodils" would beg to disagree.
At the heart of creationism is the rationalist assumption that for something to be "true" it has to be "factual." Heck, August Comte founded a whole religion on this assumption, and it seems to me that fundamentalist literalists are following in his esteemed footprints, not the footprints of mainstream Christianity.
The first chapter of Genesis is a poem, not a work of science; it even has a refrain and a system of numerological symbolism wrapped up in it. The second chapter and subsequent has the form of a fable; even the names have a symbolic significance. Genesis itself is pointed to be sung in Hebrew, and still is in synagogues throughout the world. It has all the signs of a work of art.
Other books in the Bible which are works of art include Jonah, Psalms, Proverbs, Wisdom, Tobit, Esther, Job, Ecclesiastes, Lamentations and many more. Even the prophets and histories are written largely in poetic form. They all contain deep truths and wisdom; but they are not factual accounts; they don't stop being true because they depart from the facts, anymore than Hamlet becomes untrue if the Prince of Denmark never existed.
Where the facts matter, then the Bible is factual. Where the facts don't matter (I mean, whose salvation is affected by the non-existence of Samson?) the writers felt perfectly free to use their God-given imaginations as they saw fit and were inspired to do so.