The apostle John wrote to Jewish believers (Gal. 2:9) as his ministry was to the circumcision. Yet, he defines sin as the "transgression of the law" (I Jn. 4:6). What law?
The apostle Paul wrote to Gentile churches who had a mixture of Jews and Gentiles and he defines sin the very same way in Romans 3:19 and says that the "WHOLE WORLD" is condemned by "the law"? He said the same law reveals the knowledge of sin (Rom. 3:20). He says the same law manifests the righteousness of God (Rom. 3:21). What law?
Jesus was born "under the law" and came to fulfil "the law" and he is "the end of THE LAW" for righteousness. What law?
If you define "the law" as used above as something restricted to the Jew only having no relationship to Gentiles then must not you also restrict all the characteristics that define as well as fulfil that law above only to Jews as well? Hence, there is no righteousness of Christ for Gentiles as it is this same "law" he was born "under" and "fulfilled" both with his life and death as it is this same law that said all are cursed that hang upon a tree (Gal. 3:14-15)? Hence, there is no redemption from sin for Gentiles because Gentiles never transgressed the law that Christ provided Himself as payment for its violation. There is no righteousness for Gentiles as the righteousness of Christ was defined "under" that law. This kind of thinking is pure stupidity that belongs to apostate theologions.
The truth is that the Judaic law is God's most comprehensive standard of righteousness ever given to human beings and manifests the rightousness of God more completely than anything God has given to man apart from his Son whose own life fulfilled THAT SAME JUDAIC LAW.
The truth is that if the JEW could not be justified by doing "good" as defined by the JUDAIC law then no human being can be justified by doing "good" and thus NO FLESH can be justified by doing "good" works - thus THERE IS NONE RIGHTEOUS, NO, NOT ONE!
The truth is that ONLY the good works of Jesus Christ satisfy God's standard of "good" and therefore if anyone is to be justified before God "ACCORDING TO THEIR WORKS" it must be by grace ALONE through faith ALONE in the good works of Jesus Christ ALONE totally and completely WITHOUT YOUR GOOD WORKS as to include your "good" works is to repudiate Jesus Christ as the propiation of the law and to declare yourself as GOOD as GOD.
This is not a question about rather regenerated persons are being changed from from one imperfect state to another imperfect state or glory to glory by the Spirit of God (2 Cor. 3:18). This is not a question whether those created in Christ Jesus imperfectly produce "good works." This is not a question whether imperfect and incomplete holiness is the fruit of regeneration and justification. This is a question of what satisifes God's standard of righteousness. Perfect righteousness OR Imperfect righteousness? This is a distinction between the SINLESS provision of Christ FOR US and imputed to us by faith VERSUS the imperfect progressive imparted righteousness of Christ through us.
This is the difference between the Law's demand for absolute sinlessness to escape eternal condemnation and inherit eternal life VERSUS rewards now and in heaven for relative righteousness produced through us.
The former requires a PERFECT and ABOLUTE sinless righteousness while the latter requires only an IMPERFECT but RELATIVE righteousness.
It is the difference between Matthew 5:19 and Matthew 5:20. In Matthew 5:19 those already saved can violate the least of commandments and teach other to violate them and yet the only eternal consequence is to be "the least IN THE KINGDOM OF HEAVEN - that speaks of rewards IN HEAVEN.
However, in regard to entrance into heaven, except your righteousness EXCEED the righteousness of the Scribes and Pharisees you shall in no wise ENTER THE KINGDOM OF HEAVEN - Mt. 5:20. The righteousness that EXCEEDS the righteousness of the Scribes and Pharisees is only defined by EXCEEDING the method of interpretation of the Law as used by the Scribes and Pharisees (Mt. 5:21-47). The Scribes and Pharisees interpreted the Law's standand of righteousnesss LESS than absolute righteousness. They interpreted the Law by the traditions of the elders who would interpret the law against adultery as merely the external act rather than the thoughts and intents of the heart. They interpreted the law so that they were able to keep it. However, the true interpretation of the law demands SINLESS PERFECTION - "Be ye therefore perfect EVEN AS your Father in heaven is perfect" (Mt. 5:48).
The righteousness demanded by God to enter heaven EXCEEDS the RELATIVE interpretation of the Law by the Scribes and Pharisees. It EXCEEDS the best of the best of men. It demands THE RIGHTEOUSNESS OF GOD which is sinless perfection. This is why Jesus told a law keeper - THERE IS NONE GOOD BUT ONE and THAT IS GOD.
Matthew 5:20-48 define the STANDARD of righteousness to ENTER heaven which only Christ fulfilled (Mt. 5:16-18). You must obtain His righteousness to enter heaven - sinless perfection (mt. 5:48). Matthew 5:19 defines the STANDARD of righteousness to receive REWARDS in heaven which is RELATIVE righteousness as some will be "LEAST' while others will be "GREATEST" in heaven due to their own works.
Romanism and most on this forum mix these two for entrance into heaven when the Scriptures separate them. Matthew 5:19 has NOTHING to do with entering heaven while Matthew 5:20 has EVERYTHING to do with entrance into heaven.
Those who came before Christ in Matthew 7:21-23 came on this MIXED confusion of SINLESSNESS and SINFULNESS foundation of sand - "Lord, Lord" PLUS "have we not done...in thy name." This is not doing the will of God for entrance into heaven as entrance into heaven demands a profession in CHRIST ALONE and when you mix Christ's righteousness with your righteousness you get "inquity" (v. 23). It is not the house that determines whether you stand or fall in judgement but the FOUNDATION upon which the house is built (mt. 7:24-27). "And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day." - Jn. 6:40.
If this is your foundation - the perfect righteousness of Christ (I Cor. 3:11) then your house (life) can be burned to the ground but your "soul" shall still be saved even as by fire (I Cor. 3:12-15). It is this teaching that cause Paul's adversaries to suggest that such a doctrine of grace would lead God's children to sin (Rom. 6:1) because where sin abounds grace much more abounds (Rom. 5:22).