And all they who have mourned shall be comforted. . . . Therefore, let your hearts be comforted concerning Zion; for all flesh is in my hands; be still and know that I am God. - D&C 101:14, 16
"Adversity in the lives of the obedient and faithful may be the consequence of disease, accidental injury, ignorance, or the influence of the adversary," said Elder Ronald E. Poelman of the Seventy in the April 1989 general conference."To preserve free agency, the Lord also at times permits the righteous to suffer the consequences of evil acts by others. (See 1 Ne. 18:16.) Some may respond to such innocent suffering with resentment, anger, bitterness, doubt, or fear. (See 1 Ne. 17:20.) Others, with a knowledge and testimony of the divine plan of salvation, often respond with faith, patience, and hope born of that `peace . . . which passeth all understanding.' (Phil. 4:6-7.)
"The plan of salvation presented to and accepted by us in our premortal state includes a probationary period on earth. Experiencing adversity is an essential part of the process.
"There is encouragement and comfort in knowing that we will not be tested beyond our capacity to endure, that we will benefit from our adversities. . . ."