1 Thessalonians 1:8

1:8 For from you the message of the Lord has echoed forth not just in Macedonia and Achaia, but in every place reports of your faith in God have spread, so that we do not need to say anything.

1 Thessalonians 4:6

4:6 In this matter no one should violate the rights of his brother or take advantage of him, because the Lord is the avenger in all these cases, as we also told you earlier and warned you solemnly.