Jesus’ new kingdom doesn’t just involve following the small, easy, minutiae of God’s law, but instead makes massive changes to a person so that they can actually follow the most important and difficult parts of the law. They’re no longer play-actors, but actually genuinely have a pure heart. This allows them to make peace in the world, so that it looks the way it was supposed to. However, these people will face persecution, not from the expected Gentiles, but principally from their fellow Jews.