What does the Bible say about Paul's arrest?

In Acts 21, Paul is arrested primarily for preaching the message that believers are no longer bound by the law's ceremonial aspects, as Christ has fulfilled the law. He was accused by Jewish leaders of teaching against the people and the law when, in reality, his message emphasized that Christ magnified and made honorable the law. The arrest serves as a pivotal moment in Paul's missionary work, showcasing the fierce opposition the gospel faced and the misunderstandings surrounding the message of grace.