Joseph Smith's encounter with the still small voice while in retreat

After parting with his friends at a secret retreat, Joseph Smith felt discouraged until the still small voice spoke to him, comforting him regarding his friends' faithfulness.

Fuller account of this event (in the witness’s own words):

Many were the thoughts that swelled my aching heart, while they were toiling faithfully with their oars. I did so, and the still small voice whispered to my soul, these that share your toils with such faithful hearts, shall reigne with you in the kingdom of their God; but I parted with them in silence and came to my retreat. I hope I shall see them again that I may toil for them and administer to their comfort also. They shall not want a friend while I live. My heart shall love those; and my hands shall toil for those, who love and toil for me, and shall ever be found faithful to my friends. Shall I be ungrateful? verily no! God forbid!