One hundred-four years ago, there was a man who had to ask this same question for himself. His name was Adolf von Harnack. He was a German theologian. He had been teaching for decades as a leading voice of the “liberal theology” school of thought . . . In the summer of 1914, von Harnack would have known that war was on the horizon . . . For decades, von Harnack had been talking the talk about Jesus and his teachings. Von Harnack had spread the idea that modern Christians should figure out Jesus’s core message and try to live it in the modern world. Now he had a decision to make: was he going to walk the walk of being a peacemaker, as Jesus had instructed? More