I think Jesus knew very well the truths being conveyed in each parable. Who taught you that doctrine can not be taught from a parable? Funny how many of the parables teach the exact same truth I am trying to convey.
Paul says "alll have....come short of the glory of God" (Rom. 3:23). Sins of omission is coming short of God's standard of righteousness.
How does your soteriology overcome this problem? At what point in your life have you ever overcome this problem and can say that your life does not "come short" of God's righteousness? Remember to fail in one point only is to fail in all points of His moral law (James 2:10 with verse 11). Hence, the only solution is to keep every point in order to satisfy the Law's demands for righteousness and avoid its condemnation and that is precisely what the righteousness of God is or else God Himself comes short of his own standard and would be equally condemned as us. God's righteousness is sinless perfection or a life that never comes short of His own "glory" - the righteousness of God.
Any life that is less than sinless perfection has "come short" of the glory of God. This is the kind of righteousness that Christ demanded to enter heaven (Mt. 5:20) and that equals the rightousness of God (Mt. 5:48) and this is the righteousness demanded by a proper interpretation of the Law of God which the elders misinterpreted (Mt. 5:21-47).
So, if sins of omission are the basis of our condemnation then what makes you any different than those in the parables you suggest refer to real saved people but who end up lost? How does your soteriology save you from the condemnation that your life has "come short" of the glory of God? Name any point in your life that does not still "come short" of the glory of God?
If salvation is by works as you suggest, please explain how your works can overcome this problem of a condemned life for having "COME SHORT" of God's righteousness?
In other words, according to your own standard of saved versus lost at what point are you "saved" or "lost" in regard to this problem of condemnation of having "come short" of God's righteousness??
In other words if coming short brought you under condemnation in the first place, then, how in the world do you suppose a life that still continues to come short can escape condemnation for coming short of God's glory any better on judgment day????
Indeed, all of you who deny substitutionary atonement how does your soteriology overcome this problem of condemnation for having "come short" of God's righteousness? What life can you offer that overcomes this problem of condemnation and thus satisfies God's demand for a life that does not "come short" of God's own righteousness?