For this cause we also thank God without ceasing, that, when you received from us the word of the message of God, you accepted it not as the word of men, but, as it is in truth, the word of God, which also works in you who believe.
The church was experiencing persecution in Israel, in Judea. They had already had several persecutions that by which the church was scattered. And so here, these in Thessalonica were having problems, even as the church in Jerusalem had had problems.