1. The Bible was written by many different human authors.
Like classic Russian novels, the Bible is bigger than most books. But unlike Russian novels, it has more than one human author. In fact, a great many authors, including some of the more familiar names to the Christian faith, like Moses, David, Peter, John, and Paul, have written several of its 66 individual books. But this isn’t just a piece of Bible trivia. Those different authors wrote in different historical situations, using different vocabulary and writing styles—all of which helps to explain why one part of the Bible reads differently than the next.
2. The Bible has one ultimate Author.
We’re not given many details on how he did it, but we’re clearly assured that he did: behind the various human writers, each writing in their own voice, stands God himself as the ultimate author (see 2 Timothy 3:16, 2 Peter 1:20-21). This means that the Bible exhibits his trustworthiness and carries his authority. It also leads to the next point.