Loukios (G3066) is the Greek form of the Latin name Lucius, meaning 'of light' or 'born at dawn.' Paul mentions a Lucius as a kinsman and co-worker in Romans 16:21. Another Lucius appears in Acts 13:1 among the prophets and teachers at Antioch.
The Lucius of Romans 16:21 is called Paul's syngeneis — kinsman, fellow Jew. He sends greetings alongside Timothy and Sosipater. The Lucius of Acts 13:1 ('Lucius of Cyrene') is among the diverse leadership team at Antioch that sent Paul and Barnabas on the first missionary journey. Some ancient traditions identified this Lucius with Luke the evangelist, though this is not certain. Either way, 'Lucius' — a man of light — stands in Paul's network of co-laborers as a reminder that mission has always been a team enterprise. No apostle worked alone. Paul's letter to Rome closes not with a solo but with a chorus of names.