For Demas hath forsaken me. — This once faithful companion of St. Paul had been with him during the first imprisonment of the Apostle at Rome (Colossians 4:14; Philemon 1:24); but now, terrified by the greater severity and the threatened fatal ending of the second imprisonment, had forsaken his old master.
Having loved this present world. — Chrysostom paraphrases as follows: “Having loved ease and safety, chose rather to live daintily at home than to suffer affliction, than to endure hardship, with me, and with me to bear these present dangers.” The tradition, however, which relates that he became in after days an idol priest at Thessalonica is baseless. Demas is a shorter form, probably, for the well-known and now common Grecian name of Demetrius.
The present world (aiôna): that is, the present (evil) course of things.
Is departed unto Thessalonica. — From Chrysostom’s words above quoted, Thessalonica was apparently the “home” of Demas. It has been supposed, however, by some, that Thessalonica was chosen by Demas as his abode when he left St. Paul because it was a great mercantile centre, and his business connections were there, and he preferred them, the rich and prosperous friends, to St. Paul, the condemned and dying prisoner. Thessalonica was, at this time, one of the great cities of the empire. It was the most populous of the Macedonian cities, and had been chosen to be the metropolis of that great province. Before the founding of Constantinople, it was evidently the capital of Greece and Illyricum, as well as of Macedonia. It was famous throughout the Middle Ages, and is celebrated by the early German poets under the abbreviated name of “Salneck,” which as become the Saloniki of the Levant of our days. It is singular that the name of its patron saint, “Demetrius,” martyred about A.D. 290 (identified above with Demas), whose local glory (comp. Conybeare and Howson’s St. Paul, chap. 9) has even eclipsed that of St. Paul, the founder of the Church, should be identical with that of the “forsaker” of St. Paul.
Crescens to Galatia. — Nothing is known of this friend of St. Paul. One tradition speaks of him as a preacher in Galatia, and another of his having founded the Church of Vienne in Gaul. There is a curious variation in some of the older authorities here, “Gallia” being read instead of Galatia. Whether Crescens, on his leaving St. Paul, went to Galatia or Gaul is, therefore, uncertain.
Titus unto Dalmatia. — Dalmatia was a province of Roman Illyricum, lying along the Adriatic. Nothing is known respecting this journey of Titus. It was, most probably, made with the Apostle’s sanction.