D&C 23

It seems Joseph Knight must have been some what hesitant and reserved as the Lord said to him - 

"...you must take up your cross, in the which you must pray vocally before the world as well as in secret, and in your family, and among your friends, and in all places.

7 And, behold, it is your duty to unite with the true church, and give your language to exhortation continually, that you may receive the reward of the laborer..."  (Doctrine and Covenants 23:6–7)

I can somewhat relate as I was called to the high council.  I was petrified to have to speak in Church regularly.