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Unpardonable Sin Against the Holy Ghost

This non-Biblical English phrasing “unpardonable sin” of the New Testament idea of a sin that cannot forgiven (mentioned by Jesus in the Synoptic Gospels, Mk. 3:28–29, Mt. 12:31–32, Lk. 12:10, as well as other New Testament passages including Hebrews 6:4–6, Hebrews 10:26–31, and 1 John 5:16, a sin unto death) dates to the 17th century. For example John Bunyan (author of Pilgrim’s Progress) wrote about it in 1659 in The Doctrine of the Law and Grace Unfolded, (republished in the 1751 edition, p.237-p.239); see also the introduction to an edition of The Pilgrim’s Progress about the Life of John Buyan, which discusses John Bunyan’s religious obsessive compulsive disorder (which would now be diagnosed as scupulosity): “The supposition however, that he had committed the unpardonable sin, had such an effect on Bunyan, that it not only distressed his mind, but made his very body tremble for many days together; and produced such a stoppage and heat at his stomach, as greatly disordered him.”

This Google Ngram viewer shows how old the usage of the term is in English, as early as 1611, peaking around the time of 1659 (see Bunyan, above), and then falling off almost to zero by the mid-18th century, with some reprinting of works discussing it, such as Robert Russel’s 1692 sermon being reprinted in 1763, or Bunyan’s 1659 The Doctrine being reprinted in 1751 and 1811. The esteemed John Wesley (founder of Methodism) weighed in on the subject in Sermon 86, 1778, “A Call To Backsliders,” where he discusses the idea at length and mentions the term “unpardonable” and “unpardonable sin.”

However, by the early 1790s the term skyrocketed in popularity until it hit its all-time peak around 1833. So the early 19th century is when it really took off, including:

JS Jr.’s inclusion of the phrase unpardonable sin cannot be said to have been made in a theological vacuum, independently of the discusions of the time (or the previous two centuries really), especially the upswing in popularity of the term exactly as the Book of Mormon was being produced, in the 1820s and early 1830s. The Book of Mormon certainly jumped on that bandwagon.

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