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My friend Chris Seay reported recently that he found himself being de-friended and un-followed on social media when he insisted during the celebrations over the death of Osama bin Laden that we were supposed to take Matthew 5—the "love our enemies" part—seriously. In Lee Camp's new book Who Is My Enemy? Questions American Christians Must Face about Islam—And Themselves, author and professor of theology and ethics Camp recounts a similar experience of trying to tell the spiritual truth about how we are supposed to approach our so-called enemies, and suffering social opprobrium because of it. When, in an interfaith program he spoke about "Theological Ground for Peaceful Coexistence" with Muslims, he was called an asshole and an idiot, and instructed (by someone who clearly didn't know much about the Crusades) to "Learn some history you moron."

As far as his larger audience was concerned, Muslims were only interested in killing, converting, or enslaving us. They are and have always been our enemies.

To believe otherwise was simply to ignore the facts.

But in Who Is My Enemy?, Camp masterfully returns to explore that issue of "Theological Ground for Peaceful Coexistence." In the process, not only does he question myths about Islam held by those of us in the West since the Middle Ages, but he forces us to confront the harmful practices growing out of our own myths about Christianity and how it works within an Imperial setting.

"My concern," Camp tells readers, "is that we practice honest self-examination rather than the dishonest procedure of comparing an idealized form of our own faith tradition with the messy historical method of Muslims" (p. 97). In fact, Camp says, if we look at what we say we believe and what we do, we may say we are followers of Jesus, the Prince of Peace, but we act as though we are more drawn to the story of Muhammad, who permits the use of the sword in the service of justice.

Camp's method in the book is simple; he juxtaposes chapters on Christian faith and practice with chapters on Islam, forcing us to consider the history of Christianity's understanding of war and peacemaking as we also learn about the teachings of the Quran and Muslim tradition. His underlying belief is also simple; he quotes Romans, where the Apostle Paul speaks about judgment, stirs us all into the sinful mass of humanity, and challenges us to think of Muslims not as our enemies, but as human beings who see the world through a different lens than we do.

And, he challenges us to admit that, if we are honest, these supposed enemies' approach to war and peace is not that different from our own, although we claim to be more enlightened, largely because we believe that we are right.

Some readers will find it hard to stomach the criticisms Camp levels at Christianity (particularly Imperial Christianity, which he calls the lapdog to the State), and America (p. 113). In discussing America's adherence to the principles of Just War, for example, Camp points out that while we may have entered World War Two on pretexts that justify military action, we ignored those requirements of the tradition that speak to avoiding attacks on civilians or the use of disproportionate force.