A book, recommended from a missions minister, Bullies and Saints takes you on a big-picture journey from the Sermon on the Mount to the modern church.   https://www.amazon.com/Bullies-Saints-Honest-Christian-History/dp/0310118360.  Combining narrative with keen critique of contemporary debates, author and historian John Dickson gives an honest account of 2,000 years of Christian history that helps us understand what Christianity is and what it’s meant to be.  Have you read it?