Galatians 2: 15-16. “We who are Jews by nature, and not sinners of the Gentiles, Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.”
What does Paul mean when he says “We who are Jews by nature”? He is talking about those who, like himself, were born of Jewish parents and are descendants of the Jewish nation. They grew up hearing of God and His mighty works and power. They learned the Law from childhood. They were not like the Gentiles, who did not grow up in the Jewish tradition.
Both are saved by grace through faith. Jewish sinners, Gentile sinners? It doesn’t matter. Jesus died for all sinners. There is no difference to God between the Jew and the Gentile, the bond and the free, male or female. The blood of Jesus Christ was shed for all. Period. Salvation for all is by grace through faith, believing in Jesus Christ as the only Son of God Who came to die that we might live.
The only justification with God is through the blood of Jesus.