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.
KJV
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.
ASV
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.