It may seem unusual that Paul knew so many people by name in the church in Rome since he had never visited it. However travel in the Roman Empire was fairly easy during Paul's lifetime. Probably he had met some of these people elsewhere and knew others of them by reputation.
Most of the names are Latin or Greek, but some of these people were evidently Jews who, as Paul, also had Greek or Latin names (e.g., vv. 7, 11). In his epistles Paul greeted more individuals by name in the churches he had not visited than in those that he had (cf. Col.). He may have wanted to establish more personal contact with congregations that had not seen his face.
16:3-5a Paul met Prisca (Priscilla) and her husband Aquila in Corinth (Acts 18:2). When he left for Ephesus, he took them with him (Acts 18:18). He left them in Ephesus when he moved on to Jerusalem (Acts 18:19). In Ephesus they helped Apollos (Acts 18:24-28). Later they returned to Rome where they had lived previously (Acts 18:2). Later still they returned to Ephesus (2 Tim. 4:19). Churches normally met in houses at this time (cf. v. 23; 1 Cor. 16:19).
16:5b-7 Most of the people mentioned in these verses require no explanatory comment. "Asia"(v. 5) was the Roman province of Asia of which Ephesus was the capital. Junias (or Junia, v. 7) was probably the wife of Andronicus (cf. vv. 3, 15). The term "kinsmen"or "relatives"(v. 7; cf. vv. 11, 21) seems to refer to relatives of Paul who were probably fellow Jews (cf. Phil. 3:7). "Apostles"(v. 7) here must have the general sense of representatives (traveling missionaries) rather than being a technical reference to one of the 13 apostles (cf. Acts 14:4, 14; 2 Cor. 8:23; 1 Thess. 2:7; Phil. 2:25).
16:8-15 Those of the household of Aristobulus (v. 10) were probably his slaves. Since Paul did not greet Aristobulus himself this man may have been an unbeliever. Tryphena (v. 12, "dainty") and Tryphosa ("delicate") may have been sisters. Rufus (v. 13) may have been the son of Simon of Cyrene, who carried Jesus' cross (cf. Mark 15:21). Rufus' mother may have been Paul's in that she had at one time acted as a mother to him. It is unlikely that he would have referred to her as he did if she had been his physical mother.
"Let Christian mothers find here a great field for that wonderful heart of instinctive loving care given by God to mothers,--that they extend their maternal care beyond their own family circle, to all Christians, and especially to all laborers for Christ. The Lord will remember it at His coming!"412
"The brethren [or saints] with them"(vv. 14, 15) probably refers to the other Christians who met with those named in a house church.
16:16 The "holy kiss"was and is a common affectionate greeting expressing mutual love in Christ. Paul relayed the greetings of all the churches he represented.
Since Paul acknowledged his co-workers (vv. 3, 9; cf. v. 7) we know that he was not a "lone ranger"minister. The number of women mentioned in these verses argues against the view of some that Paul was a woman-hater. Obviously women played important roles in the ministry of the early church.