Why was it necessary for Peter to preach the gospel to Cornelius?

Peter's preaching to Cornelius was necessary to demonstrate that the message of the gospel was not limited to the Jews but was intended for all people, including Gentiles. This event marked a significant moment in the early Church, illustrating the breaking down of barriers between Jews and non-Jews. It also fulfilled Jesus' command to spread the gospel to all nations, affirming that faith in Christ transcends cultural and ethnic boundaries. Ultimately, Peter's actions paved the way for the inclusion of Gentiles in the Christian faith.