I think when a person stereotypes a Jew in their mind they think of the Pharisees, but at Pentecost the three thousand that became Christians were all Jews. Acts 2:41
The disciples never stopped being Jews. A true Jew is one that is a Jew inwardly. Rom 2:29
Adam and Eve had the promise that there would be a Christ before there ever was a Jew.
Abraham was to be the blessing to all nations before they were called Jews. Gen 22:18