Here, Paul refers to himself and other Jews (as contrasted to Gentiles) and especially Peter as themselves sinners. So, there was nothing in that regard to separate them from the Gentiles. But, did it follow that Christ made them sinners? Absolutely not! Instead, Christ simply reveals what is already so, we are all in need of the grace of God.
It was this truth that made Paul “die to the law that I might live to God” (19).
His purpose was to live for Christ. In his conversion, his own will became irrelevant. It was Christ who determined his life. Such should be so for us as well. “I live by faith in the Son of God, who loved me and gave Himself for me” (20).
Christ’s death was useless (vain) if a man could appear just before God as a result of the law of Moses. But, all have sinned, and there was no provision for grace and mercy under the old law. Christ is needed, and His death has value for every man.
