The Mission to Thessalonica. The Christian inhabitants of Thessalonica were mainly Greeks by birth and training, who had been won over from paganism by the efforts of Paul, Silvanus (Silas) and Timotheus (Timothy), during an effective campaign which lasted for a month or two. It had opened quietly with a three weeks mission in the local synagogue. Luke, who by this time had left thee trio, enters into no details about its length or methods, adding merely that some of the Jews believed, while a host of devout Greeks and a considerable number of the leading women threw in their lot with the apostles.