In this classic treatise, first published in 1925, J. Gresham Machen explores biblical answers to this pivotal question. Lamenting the "false and disastrous opposition which has been set up between knowledge and faith" and continuing what was his longrunning polemic against liberalism, Machen speaks out against halfhearted, watered-down attempts at faith that seek to engage the heart and the soul yet disregard the mind. He illuminates the Bible's teaching on the foundational tenets of Christian faith, clearly demonstrating that it is knowledge - the intellectual pursuit and embrace of God the Father and Jesus Christ as revealed in Scripture - that forms the foundation of all true belief.