What does Acts 28:15 mean?

Paul, Luke, and Aristarchus are on the last leg of a very arduous journey to Rome. Their ship landed at Puteoli where the trio met other Christ-followers who invited them to stay. A week later, they finished their journey (Acts 28:11–14).

The Forum of Appius was a small town about 40 miles, or 64 kilometers, south of Rome. Three Taverns is about a quarter that to the north. Paul had not yet been to Rome, but the church was already well established (Romans 1:8). In AD 49, the emperor drove out the large settlement of Jews from the city. Shortly after, Paul met two of these Jews, Priscilla and Aquila, in Corinth (Acts 18:2). By the time Paul wrote his letter to the Romans, about three years before his arrival, Priscilla and Aquila had returned to Rome (Romans 16:3–4), undoubtedly either starting or building up the church there. It's also likely some of the Jews who heard Peter's message at Pentecost returned to share Jesus' offer of salvation with their friends and families (Acts 2:10–11).

Paul will face a somewhat different response from the Roman Jews who do not follow Jesus. Despite his careful explanation of how Jesus fulfills the law of Moses and the prophecies found in Jewish Scriptures, only a few will accept his argument and recognize Jesus as their Messiah. Paul will, once again, turn his focus to the Gentiles. He'll spend two years under house arrest in a private apartment, preaching to visitors and writing Ephesians, Philippians, Colossians, and Philemon (Acts 28:16–31).