"Has the Prophet Joseph found Elder Rigdon in his councils when he
organized the quorum of the Twelve, a few months before his death,
to prepare them for the endowment? And when they received their
endowment, and actually received the keys of the kingdom of God,
and oracles of God, keys of revelation, and the pattern of heavenly
things, and thus, addressing the Twelve, (Joseph) exclaimed,
'Upon your shoulders, the kingdom rests, and you must round your
shoulders, and bear it; for I have had to do it until now. But now
the responsibility rests upon you.'"--Times and Seasons, 5: 698
And also President Woodruff's testimony given in 1892. (Succession,
page 101).