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Source:Martin Harris:Investigating the Book of Mormon Witnesses:112-113:1:Do you know that is the sun shining on us
George Mantle on Martin Harris (1846): "Do you know that is the sun shining on us? Because as sure as you know that, I know that Joseph Smith...translated that book"
George Mantle recalls what Martin Harris said while he was in Birmingham on a mission for the Strangites. This was well after Martin had left the Church:
When we came out of the meeting Martin Harris was beset with a crowd in the street, expecting that he would furnish them with material to war against Mormonism; but when he was asked if Joseph Smith was a true prophet of God, he answered yes; and when asked if the Book of Mormon was true, this was his answer: 'Do you know that is the sun shining on us? Because as sure as you know that, I know that Joseph Smith was a true prophet of God, and that he translated that book by the power of God.'
- Letter of George Mantle to Marietta Walker, Dec. 26, 1888, Saint Catherine, Mo., cited in Autumn Leaves 2 (1889):141. Cited in Richard Lloyd Anderson, Investigating the Book of Mormon Witnesses (Salt Lake City: Deseret Book Company, 1981), 112-113. ISBN 0877478465.