Alma said:
What a bunch of nonsense. According to Mormonism Jesus is God (just look at the title page of the Book of Mormon where it says that the purpose of the Book of Mormon is to convince the world that Jesus is the ETERNAL GOD). And the idea that only the obedient will be saved doesn't mean that good works save anyone. Jesus is the author of salvation to them that obey him. (Hebrews 5:9) Even though we have to obey him, he is still the author of salvation.
Alma
That is a spin and you know it alma. He is "eternal" only as each of us are eternal according to Mormon doctrine. We were all free floating intelligences existing from all time without a creator. Then the Intelligences asked the god of this world to organize the world and give every man an opportunity to be a god.Then the were turned into the spirit children of the father god and the mother goddess. and later those spirits were sent here to inhabit human bodies as a body of flesh and bone is necessary to become a god .
So Jesus and all of us including lucifer were for all time according to your reckoning always existent . But not eternally existent as God .
In-fact even now he is not a god over a planet but is still physically present with the father .
Who is the mormon Jesus?
When the plan for our salvation was presented to us in the spirit world, we were so happy that we shouted for joy (see Job 38:7).
We understood that we would have to leave our heavenly home for a time. We would not live in the presence of our heavenly parents. While we were away from them, all of us would sin and some of us would lose our way. Our Heavenly Father knew and loved each one of us. He knew we would need help, so he planned a way to help us.
We needed a Savior to pay for our sins and teach us how to return to our Heavenly Father. Our Father said, "Whom shall I send?" (Abraham 3:27). Two of our brothers offered to help. Our oldest brother, Jesus Christ, who was then called Jehovah, said, "Here am I, send me" (Abraham 3:27).
Jesus was willing to come to the earth, give his life for us, and take upon himself our sins. He, like our Heavenly Father, wanted us to choose whether we would obey Heavenly Father's commandments. He knew we must be free to choose in order to prove ourselves worthy of exaltation. Jesus said, "Father, thy will be done, and the glory be thine forever" (Moses 4:2).
Satan, who was called Lucifer, also came, saying, "Behold, here am I, send me, I will be thy son, and I will redeem all mankind, that one soul shall not be lost, and surely I will do it; wherefore give me thine honor" (Moses 4:1). Satan wanted to force us all to do his will. Under his plan, we would not be allowed to choose. He would take away the freedom of choice that our Father had given us. Satan wanted to have all the honor for our salvation.
Because our Heavenly Father chose Jesus Christ to be our Savior, Satan became angry and rebelled. There was war in heaven. Satan and his followers fought against Jesus and his followers.
In this great rebellion, Satan and all the spirits who followed him were sent away from the presence of God and cast down from heaven. One-third of the spirits in heaven were punished for following Satan: they were denied the right to receive mortal bodies.
Because we are here on earth and have mortal bodies, we know that we chose to follow Jesus Christ and our Heavenly Father. Satan and his followers are also on the earth, but as spirits. They have not forgotten who we are, and they are around us daily, tempting us and enticing us to do things that are not pleasing to our Heavenly Father. In our premortal life, we chose the right. We must continue to choose the right here on earth. Only by following Jesus can we return to our heavenly home.