One of the great truths restored to the earth through Joseph Smith in 1820 is the nature of God: Heavenly Father, Jesus Christ, and the Holy Ghost are three separate and distinct Beings. They work together in unity as the Godhead to “bring to pass the immortality and eternal life of man” (Moses 1:39, PoG). God the Father and Jesus Christ the Son have resurrected bodies of flesh and bone. The Holy Ghost is a personage of spirit which enables Him to fulfill his office and responsibilities.
The Book of Mormon sheds further light on the character of God. Moroni teaches in Mormon 9:9, “For do we not read that God is the same yesterday, today, and forever, and in him there is no variableness neither shadow of changing?” This recurring theme highlights several additional truths also treated in The Book of Mormon: God had a plan for His children at the creation of the world and He has the same plan today; God offers mercy to all who repent regardless of when they lived on earth; God required baptism before Christ came to earth and He still requires it for entrance to heaven; God fulfills all His words and promises today, just as He has done since the foundation of the world.
But as a member of The Church of Jesus Christ of Latter-day Saints, I also believe in eternal progression. As eternal beings we have the opportunity to progress and develop to become like God. The implicit notion is that God also continues to progress and develop because, “As man now is, God once was: As God now is, man may be” (President Lorenzo Snow, see article for source).
I remember teaching a very bright young man on my mission and I shared these two seemingly contrary beliefs in the course of a lesson. The young man thought he had caught me in a doctrinal dilemma: How can God be both unchanging AND capable of progression? What I learn from The Book of Mormon and continuing revelation is that God IS God because of core, eternal characteristics. He is goodness personified, honest, just, merciful, and more. God’s core characteristics don’t change but He can and does become more good, more merciful, more loving, more kind, more godlike and more perfect.
One of the things I find so beautiful about the Restored Gospel is that we have the opportunity to grow and progress in like manner to develop those crowning eternal characteristics.