"These believers were "zealous for the law" (21:20), which Acts probably understands in a mostly honorable way (cf. 23:3; 24:14; 25:8; 28:23; Luke 2:24-27, 39).
Paul himself is ready to show his solidarity with his people in this way (Acts 21:23-26).
Paul was not against Jewish people honoring the law; he was against imposing it on gentiles as a condition for being right with God or being "first-class" believers (13:38-39; 15:1-2). Leaders in the Jerusalem church understood and agreed (21:25)."
"And yet Paul's story didn't end with his violent zeal. Paul had a miraculous vision where the resurrected Jesus spoke to him directly. And the message completely reframed Paul's understanding of how God's kingdom was established in the death and resurrection of Jesus. While Paul had been expecting a political kingdom that would free the Jews from the rule of Rome, Jesus brought a heavenly kingdom that freed humanity from the rule of sin.
When Jesus is on trial to be executed, he says, "My kingdom is not of this world. If it were, my servants would fight to prevent my arrest by the Jewish leaders. But now my kingdom is from another place." Like Paul, Jesus could have used force to bring about the kingdom. But instead he chose to use love and humility."
The one thing rwingers have is consistency... they are consistently wrong about politics, economics, society, and oddly enough, especially about religion.