D&C 58:26
For behold, it is not meet that I should command in all things; for he that is compelled in all things, the same is a slothful and not a wise servant; wherefore he receiveth no reward.
D&C 121:7-9
(7)My son, peace be unto thy soul; thine adversity and thine afflictions shall be but a small moment;
(8) And then, if thou endure it well, God shall exalt thee on high; thou shalt triumph over all thy foes.
(9) Thy friends do stand by thee, and they shall hail thee again with warm hearts and friendly hands.
Ether 12:6
And now, I, Moroni, would speak somewhat concerning these things; I would show unto the world that faith is things which are hoped for and not seen; wherefore, dispute not because ye see not, for ye receive no witness until after the trial of your faith.