- “President David O. McKay promised every man who uses the priesthood in righteousness that he “will find his life sweetened, his discernment sharpened to decide quickly between right and wrong, his feelings tender and compassionate, yet his spirit strong and valiant in defense of right; he will find the priesthood a never-failing source of happiness—a well of living water springing up unto eternal life” Teachings of Presidents of the Church, David O. McKay [2003], Page 116