What did Paul appeal to the Jews to do in Galatians?
In Galatians, Paul appealed to the Jews to come out of their blindness and legalism and to step into the Light of God's Grace. He used Abraham and the allegory of Isaac and Ishmael as pictures of Law and Grace, continually pointing back to the Old Testament and using Jewish examples.
Les explains that in Galatians Paul constantly referred to Abraham, used the allegory of Isaac and Ishmael as pictures of Law and Grace, and kept flipping back into the Old Testament, using the Jew as examples. Paul's appeal to the Jews was to come out of their blindness and out of their legalism and step into the Light of God's Grace. This theme covered the whole period while Paul was roaming the Roman Empire and establishing churches.