New Living Translation
Never harm or cheat a fellow believer in this matter by violating his wife, for the Lord avenges all such sins, as we have solemnly warned you before.

American Standard Version
that no man transgress, and wrong his brother in the matter: because the Lord is an avenger in all these things, as also we forewarned you and testified.

Berean Study Bible
and no one should ever violate or exploit his brother in this regard, because the Lord will avenge all such acts, as we have already told you and solemnly warned you.

Douay-Rheims Bible
And that no man overreach, nor circumvent his brother in business: because the Lord is the avenger of all these things, as we have told you before, and have testified.

English Revised Version
that no man transgress, and wrong his brother in the matter: because the Lord is an avenger in all these things, as also we forewarned you and testified.

King James Bible
That no man go beyond and defraud his brother in any matter: because that the Lord is the avenger of all such, as we also have forewarned you and testified.

World English Bible
that no one should take advantage of and wrong a brother or sister in this matter; because the Lord is an avenger in all these things, as also we forewarned you and testified.

Young's Literal Translation
that no one go beyond and defraud in the matter his brother, because an avenger is the Lord of all these, as also we spake before to you and testified,

1 Thessalonians 4:6 Additional Translations ...