1. Paul's report (17-26)
As soon as Paul arrived in Jerusalem he reported in detail on the work of God in the Gentile world. This was the testimony he was willing to give his life for. But the leaders in Jerusalem were more concerned about how word of Paul's ministry was adversely affecting the Jewish believers. They convinced Paul to join in a purification ritual in hopes of placating the Jews.
2. Paul is seized (27-36)
When Paul went to fulfill his purification vows, he met some Jews from Asia in the temple. They recognized him and began loudly accusing him of bringing Gentiles into the temple in violation of the law. The charge was false, but a riot ensued. Paul was seized, and they dragged him from the temple and began to beat him. Paul's report of what God had done in the Gentile world came at a price.