1. Priscilla, Aquila and others (1-5)
The last part of Paul's letter to the Roman Christians contained greetings to many coworkers in Rome. Many of these had helped him in his ministry. Phoebe may have been the person who carried Paul's letter to Rome. She must have been a great servant of the church in Cenchrea, for Paul commends her as a saint and asks the Romans to give her any help she needed. Paul met Priscilla and Aquila in Corinth and they travelled with Paul on some of his journeys. They became invaluable coworkers to him, for they risked their very lives for him. He and the church owed them a great debt of honor.
2. Many other coworkers (6-16)
The list here is long. Even a great man like Paul needed many coworkers to help him in his ministry. Some were relatives, like Andronicus and Junia. Others were dear friends, like Epenetus. Some of them were faithful women, like Tryphena and Tryphosa. We don't know much about any of them. But they are greatly honored by Paul. We should learn that we need many friends and coworkers as we do God's work. We should honor each of them.