In modern times the break from the historic Christian substance came when the church began to interpret its faith through modern categories of thought. The shape, then, of dominant Protestant theology, both liberal and conservative as it developed through the eighteenth, nineteenth, and twentieth centuries, was neither reformational nor historic, but modern. Consequently, the return to historic Christianity is also a return to reformational Christianity. Since it is in understanding the early church that evangelical Christians are most deficient, we will draw mainly from the early church fathers in this work.
– Robert E. Webber in Common Roots