At Pentecost the Apostles received the Holy Spirit, who inspired them and told them what to say and do. They went out into the world to preach the message of Jesus, the Gospel. They established Christian communities in many cities.
Peter went to Rome and became the leader of the local Church there. Many Apostles preached the Gospel among the Jews, while the Apostle Paul brought the message to the Gentiles, i.e. the non-Jews or heathens. Jesus’ Gospel is intended for everyone!
