John 3:16
Rom 10:13
Jesus said, “Whosoever comes to me, I will in no wise cast out.”
You are confusing churches and their doctrines with the saving grace of our Lord.
Hopefully, we’re saved based on the promises in His word and not based on our denomination having its doctrine correct.
I always thought that it was “through grace ~we are saved through faith, and that not of ourselves, it is a gift of God, not of works lest any man should boast.”
I always thought that the supposed "most correct book on earth" (never mind that God, forbid, would ever start pitting one Scripture versus another like Joseph Smith did) said: "We are saved by grace AFTER all you can do."
This kind of grace, then, would never kick in til you've done all you can do. Who qualifies? Point out ONE person besides Jesus Christ who can say He's done everything He could do. (By our sins of omission alone, we all flunk)