Religious faith is under assault. In books and movies and on television, militant secular critics attack religion with a renewed vigor. These “new atheists” repeat a two-part mantra: that religious faith is hopelessly irrational and that those possessed of such faith are responsible for the hatred and bloodshed that has plagued humanity. Abandon religion, they urge us, and the world will at last live in peace. In Defense of Faith examines this proposition in the context of Western civilization and the Judeo-Christian tradition and asserts that, far from encouraging hatred and violence, the Judeo-Christian tradition has easily been the most effective curb upon the dark defects of human nature and our best tool in the struggle for humanity. From the Christian activists who fought to stop the genocide of Indians in South America and their ethnic cleansing in North America, to the abolition of African slavery on both sides of the Atlantic, and on to modern human rights activists from Martin Luther King Jr. to the rock star Bono—In Defense of Faith rebuts the fashionable arguments against religion and presents the strong and lasting record of the Judeo-Christian idea. History has not been as kind to the atheist model: every time it is put to the test, we have reverted to the most base, violent instincts of our selfish genes.