Galatians 6:16. “And as many as walk according to this rule, peace be on them, and mercy, and upon the Israel of God.”
This rulewas a reference to the standard Paul defended in all of his writing; Salvation by grace through faith, and not my works or rituals. It refers back to the previous verse which stated that salvation depends on neither circumcision nor uncircumcision. He emphasized the importance of his teaching by saying salvation is by grace through faith even (and, including, not excluding) the Israel of God. Jews had access to salvation in the same way as the Gentiles. They no longer had to follow the Old Testament Law, which had been completely fulfilled by the sacrifice of Jesus Christ.
It didn’t matter any more whether they were circumcised or uncircumcised. All, even Isarel, come to salvation by grace through faith. The price was paid at Calvary.
It was finished.