C. S. Lewis has been hailed as one of the most influential Christians of the twentieth century. A great measure of his success was due to his appeal to large segments of the “Christian” religious community. Duncan Sprague commented on this phenomenon: “I am amazed the extreme positions within Christendom that claim Lewis as [their] champion and defender…liberals and the fundamentalists; the Roman Catholics and the evangelical Protestants…the most conservative Baptists to the most charismatic Pentecostals claiming Lewis as one of their own.”2 This led Walter Hooper, a prominent Lewis scholar, to brand Lewis as an “Everyman’s apologist.”3
A major portion of Lewis’s wide appeal should be attributed to his concept of Mere Christianity. When engaged in apologetics, Lewis believed he ought to avoid controversial issues that divided Christians.4 Instead, only the core of Christian doctrine should be advanced and defended to unbelievers. Consequently, since most of Lewis’s doctrinal comments are contained in apologetic works, it comes as no surprise that many—even strongly opposed movements—could claim him as their own.