This may sound all so well and good to your ears except that it's nearly totally flawed should someone go through everything you've rehearsed.
So you think the idea that a believer is going to follow Jesus, do the things that Jesus does, and keep his commandments is totally flawed. I can only say, have a good journey with Jesus.
The fatal flaw is the failure of the LDS Church to understand the main reason why God gave the commandments, it was to show us our utter inability to keep the commandments, “By the law is the knowledge of sin” (Romans 3:20).
You would be correct if the Church of Jesus Christ followed the Law of Moses and tried real hard to keep all of the commandments of the Law of Moses. Fortunately we do not.
We follow the Law of Christ (Galatians 6:2), and we follow the words of Jesus. Here they are:
John 3:15-16 King James Version (KJV)
15 That whosoever
believeth in him should not perish, but have eternal life.
16 For God so loved the world, that he gave his only begotten Son, that whosoever
believeth in him should not perish, but have everlasting life.
John 14:15 King James Version (KJV)
15 If ye love me,
keep my commandments.
John 14:21 King James Version (KJV)
21 He that hath my commandments, and
keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
Here is the real question: Is Jesus talking about keeping the commandments of the Law of Moses? NO. So your Romans 3:20 is not applicable to Jesus's word to keep his commandments.
Knowing and keeping his commandments are necessary to to have his love and the love of his Father. I submit that if you are not loved of Jesus and the Father, you can believe all day long and will not be in heaven with them for eternity.
But it all starts with "belief", unless you "believe" you will never take the next step and live Jesus's commandments. If you don't live the commandments you have no love from Jesus or his Father. It is all tied together. The love of Jesus and the Father is another word for "grace". If you believe and keep the commandments of the Law of Christ (Galatians 6:2), you will have the grace of Jesus and God and will have eternal life with them.
Do you murder? Do you commit adultery? Do you steal? Do you hate your father and mother? Do you tell falsehoods? Do you hate your neighbor? Do you love your neighbors wife?
Of course not, but why?
Do you love your neighbor? Do you love your father and mother? Do you testify for Jesus? Do you help your neighbor? Do you feed the hungry? Do you cloth the naked? Do you lift the burdens of the poor when you can, and as much as you can?
Of course you do, because you love Jesus, and he has asked you to do these things, if you really believe.
But I guarantee you that if you did not do these things, Jesus, nor his Father would love you, even if every Sunday you praised him and said you believed in him. So keep doing these things and you will be fine.
In fact, God wants us to have no illusions that we can keep the commandments when he revealed: “The law was added so that the trespass might increase.” Romans 5:20
Again, this is about the Law of Moses and in not applicable to this discussion.
You will not find the end result of Mormonism is as God revealed:
"cursed is everyone who does not continue to do everything written in the Book of the Law.” (Galatians 3:10).
Trying to do go is not good enough. A person has to
continue to do everything. If not, God’s verdict is being cursed.
Again this Book of the Law, is the Law of Moses and is not applicable to this discussion, we live in the NT not the OT. We live under the Law of Christ (Galatians 6:2) not under the Law of Moses.
So your flawed idea that you must do everything applied to the Law of Moses, which we do not live under. But Jesus, in the NT has told us to believe and keep his commandments and if we do we will be loved of him and his Father. If we do not, we will not be loved and no eternal life.
The alternative is what Biblical Christianity teaches … Jesus the substitute
“Christ redeemed us from the curse of the law by becoming a curse for us.” (Galatians 3:13)
"For it is by grace you have been saved, through faith – and this not from yourselves, it is the gift of God – not by works, so that no one can boast.” (Ephesians 2:8-9)
Yes, your alternative erases half the equation. To believe is important, but unless you keep the commandments too, Jesus and the Father will not give you their grace. Ephesians 2:8-9 is for those that believe and keep the law of Christ. Sorry there is a progression to salvation, it is not all done by Jesus. The scriptures are against OSAS.