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I'm a nerd. Always have been, always will be. After college my nerdiness shifted some of its focus from science and science fiction to the scriptures. Yep, you can nerd out on the Bible. I haven't learned any esoteric secrets, but lately I've come to realize that a lot of what's rattling around in my head isn't exactly common knowledge, either, so we're going to start a series we'll call Bible 101. Some of the facts I'll share may only be interesting; others may have apologetic value or help us interpret the scriptures. Let's dive in by looking at things in our Bible that aren't actually in the inspired text.
Chapters
There's a more complicated history, but the chapter divisions we use now were developed in the 1200s by Stephen Langton, Archbishop of Canterbury. A tradition says he was reading as he rode on a mule, and whenever the mule stopped, he would mark a chapter division. And some of them feel that random, such as when the seventh day of the creation account gets bumped to chapter 2.
Chapter numbers allow us to say "Psalm 23" instead of "The Lord is my shepherd, I shall not want" to refer to that psalm. But the downside is we tend to think of them as hard breaks in thought when they usually are not. We often start reading one chapter without thinking about what came before. John 14 flows out of John 13. Romans 8 is a response to Romans 7. We rarely read Romans through in one sitting, much less John, so my practice has become, wherever I left my bookmark, I back up and read the last paragraph before proceeding. This helps maintain a sense of the logical flow of the text.