When you form a theology, doctrine or sect that cannot harmonize all of Scripture it is never simple. Our task is to conform ourselves to the Good News, not to conform the Good News to us. If your interpretation requires that you discard all of the Book of James, much of John, and sections of Matthew and other letters of Paul you have it wrong. The Gospel was not intended to be divided such that one portion is applicable to some and other portions applicable to others.
Peace be with you
Not true. Jesus Himself said that salvation is by faith, that all that is required of men is to believe.