It sounds OK.It seems you are looking at this as, If we do this for God, He will do that for us. If we do the works, then God will keep us saved.
But I see this completely differently.
We are new people, so we will act in new ways.
You can't say to an unbeliever, do the works of God, they can't. And when you say to the believer, Do the works of God, well, of course! That's who we are!
When you say, follow the rules, you are consigning someone to a dead walk of works. But I say live the new man, as God gives us grace to live the new life.
Much love!
I didn't hear that it's NOT NECESSARY to obey God or do what He wants us to do.
Jesus left us with two rules....love God...love our neighbor as ourself.
It covers everything.