During a sermon delivered April 9, 1842, Joseph prophesies that, when he accomplishes his mission, he will be "liable to die as other men."
Discourse, 9 April 1842, as Reported by Wilford Woodruff, The Joseph Smith Papers website, accessed August 26, 2024
It has been hard for me to live on earth & see those young men upon whome we have leaned upon as a support & comfort taken from us in the midst of their youth, yes it has been hard to be reconciled to these things I have sometimes felt that I should have felt more reconciled to have been called myself if it could have been the will of God, yet I know we ought to be still & know it is of God & be reconciled all is right it will be but a short time before we shall all in like manner be called, It may be the case with me as well as you Some has supposed that Br Joseph could not die but this is a mistake it is true their has been times when I have had the promise of my life to accomplish such & such things, but having accomplish[ed] those things I have not at present any lease of my life & am as liable to die as other men