D&C 112

I found the instruction to Elder Thomas B. Marsh regarding to him personally and in leading the Twelve to be quite motivating.  I was touched also by a few warnings -

"Verily I say unto you, there have been some few things in thine heart and with thee with which I, the Lord, was not well pleased.
3 Nevertheless, inasmuch as thou hast abased thyself thou shalt be exalted; therefore, all thy sins are forgiven thee."  (Doctrine and Covenants | Section 112:2 - 3)

As well as -

"Exalt not yourselves..."  (Doctrine and Covenants | Section 112:15)

For -

"Verily I say unto you, behold how great is your calling...."  (Doctrine and Covenants | Section 112:33)