Hannah Whitall Smith (2014). “The Christian's Secret of a Happy Life: Personal, Practical, and Powerful--An Invitation to Live Life at Its Most Blessed”, p.104, Barbour Publishing
Stonewall Jackson's comments to his pastor (April 1861) as quoted in Mary Anna Jackson "Memoirs of Stonewall Jackson by His Widow, Mary Anna Jackson" (p. 141), 1895.