Acts 15 recounts the Council of Jerusalem where the early church confronts whether Gentile believers must follow Jewish law. Peter, Paul, Barnabas, and James reveal that God has opened the covenant to Gentiles through Christ, fulfilling prophecy from Amos and restoring the promise of David’s kingdom. The decision emphasizes salvation by grace, the replacement of circumcision with baptism, and the church’s unity across Jew and Gentile.