The Bible was recorded by various authors.  For instance, the first five books of the Bible: Genesis, Exodus, Leviticus, Numbers and Deuteronomy were all written by Moses.  The New Testament was largely written by the apostle Paul.  Many human authors contributed to writing the Bible, but looking at II Timothy 3:16, we are told that everything written in the Bible is inspired by God.  “All scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness.”  God used humans to write out His words, and though the human authors wrote with their own styles and personalities, God overruled what was included so that we know with certainty that all scripture is true.