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.
Now, Paul evidently had quite an entrance to the city of Thessalonica for he makes reference to it three times here in the first, in the opening part of this letter: but "it was not in vain."