I'll leave you with this. Christ is our 'once and all' justification before God through Faith Alone! This is a 'One-Time Act' of justification in Christ, because Christ Himself earned it through His perfect righteousness & holiness for us!
Righteousness Through Faith
Romans 3:
21But now apart from the law the righteousness of God has been made known, to which the Law and the Prophets testify.
22This righteousness is given through faith in Jesus Christ to all who believe. There is no difference between Jew and Gentile,
23for all have sinned and fall short of the glory of God,
24and all are justified freely by his grace through the redemption that came by Christ Jesus.
25God presented Christ as a sacrifice of atonement, through the shedding of his blood—to be received by faith. He did this to demonstrate his righteousness, because in his forbearance he had left the sins committed beforehand unpunished—
26he did it to demonstrate his righteousness at the present time, so as to be just and the one who justifies those who have faith in Jesus.
27Where, then,
is boasting? It is excluded.
Because of what law? The law that requires works? No, because of the law that requires faith.
28For we maintain that a person is justified by faith apart from the works of the law. 29Or is God the God of Jews only? Is he not the God of Gentiles too? Yes, of Gentiles too,
30since there is only one God, who will justify the circumcised by faith and the uncircumcised through that same faith.
31Do we, then, nullify the law by this faith? Not at all! Rather, we uphold the law.
Justification by Grace Alone
by Sinclair Ferguson
The idea that Justification by faith is the standing or falling article of the church is typically associated with Martin Luther. It is also, surely, the standing or falling article of the individual Christian. The strength or weakness of our grasp of justification by faith is integrally related to our freedom and joy in Christ.
Free justification by grace alone through faith alone in Christ alone lies at the heart of the application of redemption. The faith that unites us to Christ also sucks in every spiritual blessing in Him: peace with God, exultation in the hope of the glory of God, in tribulation, and even in God Himself. There is no condemnation for the believer, no prison-cell existence. For what the Law could not do in that it was weak through the flesh, God has done! He sent His Son in the likeness of the flesh of sin, and for Him o condemn sin in the flesh so that the righteous requirements of the Law might be fulfilled in them. The spirit of bondage is gone!
Earlier in his argument in Romans, Paul had employed an intriguing piece of the Gospel logic:
Question: If justification is by Grace Alone, by Faith Alone, in Christ Alone--what becomes of our boasting?
Answer: Boasting is excluded.
Question: On what principle? On the principle of works?
We should pause before reading further in Paul's dialogue.
The answer here is, surely, yes. For Paul has been insisting that boasting is excluded because we have all sinned and fallen short of the glory of God. We cannot justify ourselves by our works. We have broken God's Law, whether the Law embedded in God's image at creation or the Law revealed at Sinai.
So it id true that boasting is excluded by the principle of works; we have no works that are able to ground our boasting.
But, in the event, this is not the answer Paul gives, because it is not the logic he uses in this context:
Question: On what principle (is boasting excluded)? On the principle of works?
Answer: No, not on the principle of works.
Question: On what principle then?
Answer: On the principle of Grace.
Paul's reasoning is both unexpected and profound. It is true that our lack of works makes boasting impossible. But the principle, or Law, of works as such does not a priori exclude boasting. Were we able to adhere to it, we could say, " I did it my way." Potentially we would have something in which to boast.
So the principle or Law of works excludes boasting de facto. It is excluded a posteriori but not a priori.
But the principle or Law of Grace rules out all possibility of boasting a priori! It take all contribution to justification out of our hands and leaves it entirely in God's hands. Grace rules out all qualification by definition. Grace therefore eliminates boasting; it suffocates boasting; it silences any and all negotiations about our contribution before they can even begin. By definition we cannot "qualify" for Grace in anyway, by any means, or through any action on our part.
Thus it is understanding God's Grace--that is to say, understanding God himself--that demolishes legalism. Grace highlights legalism's bankruptcy and shows that it is not one useless; it is pointless; it's life breath is smothered out by it.