This is exactly what the LDS believe and teach. We do not believe that we are saved through our "self works".
“Even so faith, if it hath not works, is dead, being alone.”
James 2:17
James 2:18-20
Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.
Jam 2:19 Thou believest that there is one God; thou doest well: the devils also believe, and tremble.
Jam 2:20 But wilt thou know, O vain man, that faith without works is dead?”
the little (inconvenient) book of James. Largely ignored because it doesn’t fir the ‘doctrine of man”?
Ignored because it was written by James?
(James The Just was the blood brother of Jesus and leader of the church after Jesus, not Peter, until killed in 62 AD - Peter and John were his 2 counselors. All in the Bible - but inconvenient, so skipped over.)
Let me ask you a question then: What did Joseph smith add (that was necessary) IF Jesus was God (the only God) and that He is made of Father, Spirit, Son, AND Jesus COMPLETED His works for us on the cross??