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
George Whitefield (1828). “Sermons on important subjects ... With a memoir of the Author by S. Drew; and a dissertation on his character, preaching, etc., by Joseph [or rather Josiah] Smith”, p.369