In a world where skepticism reigns, the Christian faith teeters on the brink of collapse. The solution, according to early-twentieth-century modernists, was to strip away unpopular biblical teachings and reduce Christianity to a moral code. But J. Gresham Machen refused to budge. In his seminal work, Christianity and Liberalism, he argued that the problem wasn't doctrine, but rather a lack of faith. This centennial edition reminds us that God's message of salvation remains as vital today as it was a century ago. By defending the core tenets of Christianity and exposing liberalism as a counterfeit faith, Machen's work continues to inspire a new generation to boldly proclaim the truth that the world desperately needs.