When considering assurance of salvation, sooner or later we come to the question of saving faith. The ultimate issue concerns the nature of my faith, is it genuine or spurious? If I didn’t have some kind of faith, I wouldn’t be concerned with assurance at all. I wouldn’t even consider it.
However, if I have made a profession of faith in Christ, but am troubled about the reality of that profession, what I want to know is whether my faith is true saving faith, or something less. At some point I thought I believed in Christ, but is my faith now genuine or not?
Many refuse to allow questions about the nature of faith, at least in the heat of evangelistic efforts. Just ask Christ to save you, and if you are sincere, you will be saved. Never doubt it. To doubt that God saved you is to call God a liar, or so we are told. Some go so far as to assure people that “if you ever made this decision before, you don’t need to make it again. But if you have never before made this decision, you need to make it today, and if you do, you will be saved, never doubt it.”