What does Acts 4:7 mean?
The Jewish ruling council, made up of civil leaders, teaching lawyers, and priests, are questioning Peter and John as to how they healed a lame man (Acts 3:1–8). The Greek grammar here is structured in such a way that the term "you" is meant to be derogatory. The emphasis of the question is on how someone as supposedly-unqualified as Peter could have accomplished this feat.That Peter healed the man in Jesus' name doesn't mean that he used the words "Jesus of Nazareth" as a magical spell. To do something in someone's name means assuming that person's authority, power, and status in the task. It presumes that what's being done is aligned with that person's will. Jesus gave Peter and the other apostles permission in the many times He said they would ask in His name and He would grant their requests (John 14:13–14; 15:16; 16:23–26).
Peter and John do not question the Sanhedrin's authority to question them. Although they will not obey any demand that contradicts what Jesus told them to do, they accept that they are under the Jewish leadership's judicial jurisdiction (Romans 13:1). They are Jews; their beliefs are the fulfillment of Judaism. As such, they are under the authority of the Sanhedrin, but that authority has limits; the Sanhedrin should be under the authority of Jesus but is rejecting Him.
The Sanhedrin's refusal to follow Jesus limits the Jesus-followers' responsibility to follow the Sanhedrin. When the council authorizes Saul to persecute the believers, the believers will flee out of his reach (Acts 8:1–3). Later, when Saul follows Jesus and uses his Greek name, Paul, he will escape the Sanhedrin's clutches by virtue of his Roman citizenship (Acts 22:27–29; 23:26–30). But Christianity's relationship to Judaism will protect the believers. It was against Roman law to try to convert people to a religion unrecognized by the Romans. Even though Jews refused to worship the emperor, The Roman government recognized Judaism as a legitimate faith. The fact that Christianity was initially seen as a sect of Judaism saved Jesus-followers from civil charges of illegal religion (Acts 18:14–15).
Acts 4:5–12 covers Peter and John's defense before the Sanhedrin—the ruling Jewish council. The priests and other Sadducees have arrested Peter and John because after they healed a lame man, they taught a crowd that Jesus rose from the dead (Acts 3). The Sadducees don't believe resurrection is possible and really don't want to hear that a dissident they had killed has come back to life. They ask how Peter got the power to heal the man. Peter tells them, not only is Jesus alive, He's the Messiah of the Jews and the only path to salvation.
Acts 4 continues the story started in Acts 3. Peter and John have healed a man born lame and preached that Jesus has risen from the dead. The Sanhedrin orders their arrest for teaching the resurrection. The Jewish officials warn Peter and John to stop speaking in Jesus' name. Peter and John refuse, but, since they have committed no crime, the Sanhedrin releases them. Peter and John return to their friends, and the Jesus-followers pray for boldness in the face of growing persecution. The church continues to grow, sharing all their possessions so that no one is in need.