New Defender's Study Bible Notes
3:12 Artemas. “Artemas” is not mentioned elsewhere, although Tychicus is referred to several times (e.g., Acts 20:4) as a frequent companion and messenger of Paul’s.
3:12 Nicopolis. There is no mention in Acts of Paul ever having been in either Crete or Nicopolis. This is one reason why most scholars believe he must have been released from his first Roman imprisonment, after which he did travel to these and other places.