… However good a person’s works, he could not be saved had Jesus not died for his and everyone else’s sins. And however powerful the saving grace of Christ, it brings exaltation to no man who does not comply with the works of the gospel.
Of course we need to understand terms. If by the word salvation is meant the mere salvation or redemption from the grave, the ‘grace of God’ is sufficient. But if the term salvation means returning to the presence of God with eternal progression, eternal increase, and eventual godhood, for this one certainly must have the ‘grace of God, ’ as it is generally defined, plus personal purity, overcoming of evil, and the good ‘works’ made so important in the exhortations of the Savior and his prophets and apostles.
(Spencer W. Kimball, Teachings of Spencer W. Kimball, pp. 70–71)