The model church?
The believers in Macedonia welcomed the gospel... then they transmitted the gospel... how?
Well... the message came "in word, in power, in the Spirit and in deep conviction..." (1 Thess 1v4)
And despite severe sufferings, the Thessalonians, "turned to God from idols, to serve the living and true God, and to wait for his Son from heaven, whom God raised from the dead, Jesus Christ our Lord." (1 Thess 1v9-10)
We too can learn how churches become examples to others, through the power of the gospel.