I recently did an interview with Stephen Bedard on the History of Christianity podcast, also on youtube about my book All Things in Common: The Economic Practices of the Early Christians. I hope you enjoy it.
I would argue that the best summation of Christian ethics is found in the sermon on the plain in Luke 6:20–49. What I love about the sermon on the plain is just how radical it seems on the surface, it seems almost impossible; however, when you think about what it’s saying, and think about it deeply—it makes sense. Probably my favorite example of this is found in Luke 6:34–35 (NRSV):