Came down to Troas - This was a city of Phrygia or Mysia, on the Hellespont, between Troy north, and Assos south. Sometimes the name Troas or Troad, is used to denote the whole country of the Trojans, the province where the ancient city of Troy had stood. This region was much celebrated in the early periods of Grecian history. It was here that the events recorded in the Iliad of Homer are supposed to have occurred. The city of Troy has long since been completely destroyed. Troas is several times mentioned in the New Testament, 2-Corinthians 2:12; 2-Timothy 4:13; Acts 20:5.

Came down to Troas - The Troad, or part of Phrygia Minor in which the celebrated city of Troy was formerly situated. This city was first built by Dardanus, who was its king, and from whom it was called Dardania; from Tros, his grandson, it was called Troja, or Troy; and from his son, Ilus, it was called Ilium. It has been long so completely destroyed that no ascertainable vestige of it remains; insomuch that some have even doubted of its existence. Those who contend for the reality of the history of Troy suppose it to have stood on the site of the modern village Bounarbachi, about twelve miles from the sea, on an eminence, at the termination of a spacious plain.

And they passed by Mysia,.... Without stopping or staying there, though they came to it:
came down to Troas; either the country of Troas, as the Syriac version renders it; which, according to Solinus (m), is bordered on the north part of Galatia, and was near to Lycaonia, Pisidia, and Mygdonia on the south, and to Lydia on the east, and to Mysia and Caria on the north: or rather the city of Troas, which Pliny says (n), was formerly called Antigonia, now Alexandria, a colony of the Romans. Antigonus king of Asia called it Troas at first, because it was in the country, and near where Troy stood, but afterwards he called it, according to his own name, Antigonia; but Lysimachus king of Thrace having got this city into his hands, repaired it, and called it after the name of Alexander, Alexandria; and to distinguish it from Alexandria in Egypt, and other cities of the same name in other places, it was called Alexandria Troas.
(m) lb. c. 53. (n) Hist. Nat. l. 5. c. 30.

came down to Troas--a city on the northeast coast of the Ægean Sea, the boundary of Asia Minor on the west; the region of which was the scene of the great Trojan war.