Brigham Young said: “Whoever is ordained to the office of an elder in the Holy Priesthood possesses the keys of the Melchizedek Priesthood to a certain degree and, if only one elder should be somehow left on the earth, he could go and set in order the Kingdom of God through revelation.”
Elder John A. Widstoe in his book A Rational Theology on page 103 wrote of this proposition: “As an illustration of the great power, authority, and duty carried by the Priesthood, it may be recalled that, if by any chance every man holding the Priesthood in the Church should be destroyed, save one elder, it would be the duty and right of that one elder, UNDER DIVINE REVELATION, to reorganize the whole church with all the grades of the Priesthood and its offices.”