He had dedicated his life to the Lord, serving as a New Testament Scholar at Princeton Seminary. But he never would have thought that standing upon the revealed scriptures of God and contending for the faith would have led to his dismissal from the revered school of higher learning and the stripping of his credentials of ordination. Nor could he know that his convictions and actions would irreconcilably split the Presbyterian Church, and that many other denominations would follow suit. In an exciting time in America when nearly everything was progressing in art, culture, science, and medicine, John Gresham Machen would lead the conservative resistance against the onslaught of Progressive and Liberal ideology into the historic Christian faith. Although his short but powerful book, Christianity and Liberalism was published in 1923, it remains freshly relevant today as does his example to us in defending the faith.