If that's your view, we're done because that is simply absurd and outlandish.
Man was not created to be imperfect, to sin IOW. So there must be something wrong, something
missing in him. And that
something is God, Himself, with whom all things are possible. So, yes, man
will ultimately achieve his perfection, his teleos, at the hands of God providing we remain in Him even as that process won't be completed until the next life. And man's will is, at God's discretion according to His wisdom, intrinsically involved in that process.
And none of this means that man can achieve the perfection of God, Himself, even as Jesus instructs us to be perfect as He is perfect. It only means that man has a perfection proper to his nature, as all creation does, and God's purpose is to finally realize that in us. And it
is realized to the extent that we're conformed to His own image-and as we come to love Him with our whole heart, soul, mind, and strength and our neighbor as ourselves. As we come to love as He does, IOW.
But how can you believe v.22 after all you've claimed about the law? Righteousness is given "to all who believe".
Yes!! But also it's not a pretend or imputed rightouenss-it's the real thing. And
yet we still sin. And this is precsely where grace and the will of man meet, where salvation is worked out together with he who works in us, where man must do good and put to death the deeds of the flesh, more expected from those given more in terms of whaterver: grace revelation/knowledge, oppotunity, time, intelligence, maturity, background, etc. God knows the heart of man far better than we do.
Either way, faith and grace are not get-out-of-hell free cards. They're simply the authentic means, the pathway, to that end, to salvation, to God. We're all on a "jouney to perfection" as the church teaches, providing we open the door and get on board to begin with. God has bigger and grander plans for man than we can begin to imagine. He's been in the business of
producing something all along, something great and noble, rather than simply saving a number of otherwise worthless wretches. He loves man with a love we can hardly begin to fathom, and only with the help of grace is that understanding even possible at all.