The story of the three witnesses, who they were, and how they got to be the chosen three is an inspirational and amazing account of very mortal men being asked to do something beyond their mortal reach. From the very moment they stood in the presence of Moroni, their lives were forever changed, and no matter what else they did for the rest of their lives, this testimony they left would define who they were and how they would keep the mandate given them by the Lord.
Though they all were estranged from the church, and Joseph, and Brigham Young, at least for a time, they never denied or tried to hide their testimony as it appeared in the introductory pages of the Book of Mormon.
They were very mortal men who left an immortal legacy that bears witness to us today of the truth of the Book of Mormon.