Galatians 3:16 KJV
Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.
I do not mean to make less of Israel than is biblical but I also do not mean to make more of them than is scriptural. Paul is here explaining the position of God's covenant with Abraham, a covenant that is generally associated with the Jews. He explains that the Jewish law came four hundred and thirty years after Abraham and could in no way disannul or make void that covenant of grace that was made to Abraham.
Paul marks that the scripture says seed, singular and not seeds plural. It was not to be through the nation of Israel and their law that all nations would be blessed. They would be blessed through just one child of Abraham, that child being Christ.
This does in no way diminish the role of Israel. They as a people are the apple of God's eye and have precious promises awaiting them. But it does put the Jewish law in its proper place: it is subjugated by the grace of God through faith. It is supplanted and set aside by that faith.
May God free all from such a law by the grace which is by faith.