Albert Barnes on Acts 17:10

And the brethren immediately sent away Paul and Silas. Comp. Acts 9:25. They did this for their safety. Yet this was not done until the gospel had taken deep root in Thessalonica. Having preached there, and laid the foundation of a church; having thus accomplished the purpose for which they went there, they were prepared to leave the city. To the church in this city Paul after- wards addressed two epistles.

Unto Berea. This was a city of Macedonia, near Mount Cithanes. There is a medal of Berea extant, remarkable for being inscribed, "of the second Macedonia."

(g) "sent away Paul and Silas" Acts 17:14, 9:25