Simply put, stories are a very effective way to communicate anywhere in the world, in any culture. The stories help us derive meaning and purpose from life. The story of God from Creation to New Creation challenges every worldview. It involves us in the action of the story, showing us our place in it. It shows us where God is taking history, and because of that, we are compelled to join Him in His work.
Check out this free AccessTruth series on the Metanarrative of Scripture, Bible teacher and professor Scot Keen demonstrates how God progressively reveals Himself through the narrative, and the importance of wrapping our minds around the Biblical story before challenging others with it.