From Institute Manual  Mark 16

     President James E. Faust (1920–2007) of the First Presidency explained why it may have been so difficult initially for the disciples to believe that Jesus Christ had risen from the dead:“Perhaps the Apostles should not be unduly criticized for not believing that Jesus, having been crucified and buried in a tomb, had come back to earth as a glorified being. In all human experience, this had never happened before. It was completely unprecedented. This was a different experience than the raising of Jairus’ daughter (see Mark 5:22, 24, 35–43), the young man of Nain (see Luke 7:11–15), or Lazarus (see John 11:1–44). They all died again. Jesus, however, became a resurrected being. He would never die again. …     “Said President David O. McKay of this experience: ‘The world would never have been stirred by men with such wavering, doubting, despairing minds as the apostles possessed on the day of the crucifixion.      “‘What was it that suddenly changed these disciples to confident, fearless, heroic preachers of the gospel of Jesus Christ? It was the revelation that Christ had risen from the grave. His promises had been kept, his Messianic mission fulfilled. … On the evidence of these unprejudiced, unexpectant, incredulous witnesses, faith in the resurrection has its impregnable foundation.’ (Treasures of Life, comp. Clare Middlemiss, Salt Lake City: Deseret Book Co., 1962, pp. 15–16.)       “Like the Apostles of old, this knowledge and belief should transform all of us to be confident, settled, unafraid, and at peace in our lives as followers of the divine Christ. It should help us carry all burdens, bear any sorrows, and also fully savor all joys and happiness that can be found in this life” (“The Supernal Gift of the Atonement,” Ensign, Nov. 1988, 13–14).