If By Grace Then It Is No More of Works
There are some, like the poster who goes by the name of "God's Truth," who say that the "works of law" in the following verse is only in regard to the ceremonial ordinances of purification under the law of Moses:
I will prove that truth to you from the scriptures and I will attempt to reason with you.
"wherefore by works of law shall no flesh be declared righteous before Him, for through law is a knowledge of sin" (Ro.3:20).
Listen carefully to what Paul says; he speaks of righteousness and the law. He says the works of the law.
The works of the law that made the people righteous to come before God were the purification/ceremonial works.
The Gentiles were dead in their sins because they did not do those ceremonial works.
There was no forgiveness of sins without the shedding of blood, and the blood of animals had to be shed.
Colossians 2:13 When you were dead in your sins and in the uncircumcision of your flesh, God made you alive with Christ. He forgave us all our sins,
Did you read that how Paul tells the Gentiles they were dead in their sins and in the un-circumcision of their flesh?
Then Paul says God forgave them, he did not make the Gentiles get circumcised first.
Here Paul speaks of "the works of law" and according to him that law is a "knowledge of sin." It is the moral law which is the knowledge of sin, as witnessed by what Paul said later in the same epistle:
"What shall we say then? Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet" (Ro.7:7).
Paul says that it was the moral law (thou shalt not covet) which resulted in him having the knowledge of sin. So in the following verse when Paul refers to "law" he is referring to the moral law:
You went from Romans 3:20 to Romans 7:7 and made them about the same thing.
Romans 7:7 is, as you say, the way Paul was taught about sin, but that does not change the fact that the people had to do the ceremonial works to deal with their sin nature.
Therefore, Paul is saying that no one is declared righteous in the eyes of God by keeping the moral law. Then just eight verses later Paul makes it plain that a person's justification is apart from the works of the same law, the moral law:
You are mixing up the ceremonial works of the law with the moral aspects of the law. God would not put down anyone for keeping the moral law. That is just not right to say that.
So according to Paul a person is declared righteous in the eyes of God and that righteouness has nothing to do with keeping the moral law. Paul continues his discourse on this subject where he speaks of the same "works" when speaking of grace:
"For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness. Now to him that worketh is the reward not reckoned of grace, but of debt. But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness" (Ro.4:3-5).
Paul is speaking about circumcision. Circumcision is the sign and seal of all the other purification/ceremonial works. Just count how many times Paul speaks of circumcision in Romans, and all the other times he speak of no works.
From this we can understand that keeping the moral law plays no part in one's salvation. We can also understand that the "works" in the following passage is also speaking of the moral law:
Earlier you added the word ‘moral law’ to a scripture where it did not say ‘moral law’.
"So too, at the present time there is a remnant chosen by grace. And if by grace, then it cannot be based on works; if it were, grace would no longer be grace" (Ro.11:6).
The remnant of Jews chosen by grace is about how some Jews had faith in God and some did not, the old law was not based on faith, it was based on all those purification/ceremonial works. The Jews who had faith were saved, and the Jews who did not have faith were cut off.
God did not like it that the people could sin, give a sin offering, but not really be sorry for their sins. They could just do the purification works and maintain their relationship as children of God.
Galatians 3:12 The law is not based on faith; on the contrary, it says, "The person who does these things will live by them."