Sept 24- Doctrine & Covenants 107:23 & 99

The first presidency and quorum of the 12 are called and set apart to be special witnesses of Jesus Christ. They have been from the beginning of time and they continue to be today.

Elder Bednar

https://rsc.byu.edu/vol-12-no-2-2011/special-witnesses-name-christ

Elder Uchtdorf

https://www.churchofjesuschrist.org/study/general-conference/2008/10/lift-where-you-stand?lang=eng