Be diligent to come to me soon, for Demas left me, having loved this present world, and went to Thessalonica; Crescens to Galatia; and Titus to Dalmatia. Only Luke is with me. Take Mark and bring him with you, for he is useful to me for service. But I sent Tychicus to Ephesus.
Stated in text
The letter names Paul as author; many scholars dispute this.