24 And you will purify yourself with them, while they shave their heads. Then everyone will know that you keep the law of Moses.
25 We've told the Gentile believers that they don't have to obey the law of Moses, but only abstain from things offered to idols, blood, strangled things, and fornication.
So the next day, Paul purified himself, and an offering was made for each of the men who shaved their heads.
Paul is arrested (by the Jews who try to kill him)
27 When the seven-day ceremony was almost over, the Jews incited all the people to arrest Paul.
30 So the people went to the temple and seized Paul.
31 Just as they were about to kill him, he was saved by Roman officers.
33 The captain bound Paul in chains and asked him who he was and what he had done.
34 The people cried out various accusations, which the captain couldn't understand. So he took him to the castle.
39 As Paul was being led to the castle, he said to the captain, “May I speak to the people?” The captain allowed it, so he stood on the stairs and addressed the people in Hebrew, saying:
223 I'm a Jew, who was born in Tarsus. I believed in and taught others to obey the law of Moses. 4 I persecuted, imprisoned, and killed believers. 6-21 But I became a Christian after I heard the voice of Jesus on the way to Damascus.
22-23 After Paul finished speaking, the crowd took off their clothes, threw dust in the air, and yelled out, "Kill this man. He's not fit to live."
Paul is whipped by the Romans (and released because he's a Roman citizen)
24 The captain brought Paul to the castle and had him whipped.
25 As they tied him up, Paul said to the centurion, “Is if lawful to scourge a Roman citizen without a trial?”
26 The centurion went to the captain and said, “Be careful. This man is a Roman citizen.”
29-30 So the captain decided to release Paul, since he was a Roman citizen, and have him tried the next day.
A few more words about this episode
The school of Tyrannus (19:9)
This is the only school mentioned in the Bible. No one knows who Tyrannus was, but it is a genus of very cool birds - the Kingbirds.
The first book burning (19:19)
Well, the first Christian book burning, anyway. King Jehoiachim burned a scroll (Jeremiah 36:23-26, Episode 195) and there may have been some book burnings in third century BCE China. (Wikipedia: Book Burning)
The books were worth a total of 50,000 pieces of silver. (19:19)
A silver piece was worth about a day's wage.
Sick people were cured from handkerchiefs and aprons that had been touched by Paul. (19:12)
This verse is often cited to justify the veneration and healing power of relics in the Catholic church. (Wikipedia: Relic, history)
Four men will take a vow and shave their heads. (21:23-24)
To show that Paul was wrong to tell Jewish Christians to disobey the laws of Moses, four men will become Nazarites, as Paul apparently did in the previous episode.
Is if lawful to scourge a Roman citizen without a trial? (22:25)