We tend to read the Bible as though each story follows the one immediately preceding it, as though the Bible is presenting things to us in a nice, orderly fashion. This is only sometimes the case. For example, David reigned for forty years, and his son Solomon reigned for forty years. The assumption is that when David died, Solomon began to reign. However, it becomes apparent that Solomon was anointed king before his father's death. Yet, David does not cease to be king. It is likely, then, that there is an overlap of the reigns between the two men. It makes perfect sense that Solomon's first year coincided with David's last year. As we read carefully through the Bible, we see that a king with leprosy may be confined to his quarters while still technically being king, though his son may be the public king. Remember, back in Genesis 25, when the author kills Abraham in the first few verses and then speaks of Isaac's children being born at the end of the chapter, though Abraham was alive to enjoy his twin grandsons until they were 15. Sometimes, the narrative jumps forward without actually giving us a proper timeline. We need to be careful readers.