Oswald Chambers (2015). “Our Brilliant Heritage / If You Will Be Perfect / Disciples Indeed: The Inheritance of God's Transforming Mind & Heart”, p.138, Discovery House
Charles Haddon Spurgeon (1988). “Spurgeon at His Best: Over 2200 Striking Quotations from the World's Most Exhaustive and Widely-read Sermon Series”, Baker Publishing Group
Charles Haddon Spurgeon (1988). “Spurgeon at His Best: Over 2200 Striking Quotations from the World's Most Exhaustive and Widely-read Sermon Series”, Baker Publishing Group