1 tn BDAG 250 s.v. διοδεύω 1 has “go, travel through” for this verse.
2 sn Amphipolis. The capital city of the southeastern district of Macedonia (BDAG 55 s.v. ᾿Αμφίπολις). It was a military post. From Philippi this was about 33 mi (53 km).
3 sn Apollonia was a city in Macedonia about 27 mi (43 km) west southwest of Amphipolis.
4 sn Thessalonica (modern Salonica) was a city in Macedonia about 33 mi (53 km) west of Apollonia. It was the capital of Macedonia. The road they traveled over was called the Via Egnatia. It is likely they rode horses, given their condition in Philippi. The implication of v. 1 is that the two previously mentioned cities lacked a synagogue.