Many anti-Mormons claim that we believe that our God was once a man on another god’s planet. Allegedly, we believe he became a god by being a good Mormon, and we too can become gods of our own planets by being good Mormons. This is not true!
Let me explain what Mormons actually believe. Romans 8:17 says that Christians are joint-heirs with Christ. What is a joint-heir? It is someone who inherits something equally with all the other joint-heirs. So being joint-heirs with Christ means that we will inherit, to an equal degree, whatever it is that Jesus inherited from God the Father. And it was godhood that Jesus inherited from God. In John 8:58, Jesus calls himself “I am,” which is God’s name in the Old Testament. He is claiming to be God!
So we too will inherit godhood from God the Father. Just like Jesus, if we are faithful Christians and receive all the saving ordinances of The Church of Jesus Christ of Latter-day Saints, we will return to God’s presence. If God is everywhere, and we are with God, then we are everywhere too. Being in God’s presence makes you god-like.
It doesn’t mean that you will become a god over your own planet like anti-Mormons claim. You will still be subject to the one and only God. But God will share the secrets of eternity with you. You will be all-knowing just like God is. God wants to share everything he has with us for we are his beloved children.
So if we can be like God, was God once a man. Well, yes. But he wasn’t a man on another God’s planet as anti-Mormons claim. You see, in the beginning, God was just a spirit surrounded by nothing. God knew everything because he knew that he existed and that’s all there was to know. So the Bible is correct in declaring that God always existed and was always an all-knowing being. But we know through latter-day revelation that, in order for God to know everything he knows now, he had to learn everything. He had to progress.
In order for God to learn everything about mortality and the human condition, he created a body for himself and dwelt on an earth that he created similar to ours. He learned everything there was to know about being human. And then he created our world and the billions of souls that would be born here. Our God didn’t have another god who gave him a body of flesh and bones. God learned to make for himself a body of flesh and bones all by himself.
Mormons do believe that there are many gods because many Christians have accepted the saving ordinances of the LDS Church and have been exalted to become god-like. But they are under God, even though they are gods themselves. It doesn’t mean we believe that there are many gods who each have their own planet. There is only one God who makes worlds without number. Our God is the god of all the planets in existence. There is only one God.