This is the true Church, the only true Church, because in it are the keys of the priesthood. Only in this Church has the Lord lodged the power to seal on earth and to seal in heaven as He did in the time of the Apostle Peter. Those keys were restored to Joseph Smith, who then was authorized to confer them upon the members of the Quorum of the Twelve. When the Prophet Joseph was murdered, the enemies of the Church thought that the Church would die. They thought it was the creation of a mortal man and therefore would perish with him. But their hopes were dashed. It was the true Church, and it also had the power to live on, even when those chosen for a time to lead it died. We have seen today a demonstration that this is the true and living Church. The keys of the priesthood are held by mortals, but the way has been prepared by the Lord for the keys to remain functioning on the earth so long as the people exercise faith, both that the keys are on the earth and that they have been passed on by the will of God to His chosen servants.
The True and Living Church
(D&C 1:30) President Henry B. Eyring teaches about the True and Living Church.