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Christians know this scripture is the Great Commission. We are to go to all the nations and preach the Word of God. As the saying goes, ‘the great omission of the Great Commission is not obeying’. Why would Jesus tell people to go do this if it wasn’t going to work, or if He didn’t hold the keys? Someone is lying.
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According to LDS theology “There is but one at a time who holds the keys and the right to receive revelation for the Church, and that man is the President of the Church”. Doctrines of Salvation 1:283.