Samuel Walker
First published in the 1700's this work probes in depth what true Christianity really is. Walker was a pastor for years before realizing that he was unconverted, even though outwardly living a very moral life. Practical Christianity Illustrated penetrates the heart and exposes the sin and depravity in the hearts of all. He draws clear distinctions between the truly converted and the unconverted heart. Added to the original work are biographical material and A Scheme of Private Instruction, detailing Walker's counseling work with unbelievers, from The Life and Ministry of the Rev. Samuel Walker, B.A. by Edwin Sidney.