The message of Hebrews regarding the relationship between the law of Moses, the OT, and centuries of religious life and practices to Christ can be found throughout the NT…including the gospel of John, Galatians, Romans, Revelation, etc. Unfortunately, there are sharp polemical thrusts against Judaism all over Christianity’s primary document.
What is forgotten is that Judaism was the dominant religion pressuring and persecuting the small minority sect of Jesus followers, who were even openly declared as heretics by the end of the first century. The boundaries, self identity, and rightness of the sect was thrust front and center in its argument with Judaism, and preserved in the written NT. How much of this was actually the language of self preservation?
With the passage of time, this was and is no longer the case. The tables were turned. Gentile Christianity became the dominant religion, Judaism the persecuted minority, with the NT ripped from its historical context and used as justification for horrific abuse of the Jewish minority over the centuries. Post Holocaust Christian theologians have sought to mitigate this. The church at large needs to continually hear this needed change in emphasis.
A simple way of pointing to this from the NT is by highlighting Jesus’s own summary of the law and the prophets, the entire Bible of his day, “Do to others as you would have them do to you.” There are no limitations on this by race, gender, or religious background. A second is what Peter said to Cornelius, “God has shown me that he accepts all people of every nation who do good.” This was to counter Peter’s own bigotry and prejudice towards Gentiles. This needs to be equally applied now in reverse.
Christian anti Semitism is a total oxymoron, actually directed at Jesus himself, the Jewish messiah. In fact, bigotry nurtured and practiced in any form is anti Christ.