William Smith submits a letter to Hyrum, begging for forgiveness because of the fight with Joseph and asking to be released from his apostleship because of his temper. Joseph answers, encouraging him to keep his apostleship, to control his temper, and "if at any time you should consider me to be an imposter, for heaven's sake leave me in the hands of God, and not think to take vengeance on me yourself. . . . David sought not to kill Saul, although he was guilty of crimes that never entered my heart."
[History of the Church of Jesus Christ of Latter-day Saints (7 volumes) 2:338-43, referenced in Conkling, Christopher J., Joseph Smith Chronology]