1. While Peter and John were speaking to the people, a group of men came up to them. There were Jewish priests, the captain of the soldiers that guarded the Temple, and some Sadducees.
2. They were upset because the two apostles were teaching the people. Peter and John were preaching that people will rise from death through the power of Jesus.
3. The Jewish leaders grabbed Peter and John and put them in jail. It was already night, so they kept them in jail until the next day.