en_tn_condensed/1th/04/06.md

no man

"no one" or "no person"

transgress and wrong his brother

Possible meanings: 1) The words "transgress" and "wrong" are a doublet that emphasizes the idea of harming the brother. Alternate translation: "do very wrong things to his brother”and 2) The word "transgress" refers to sinning against God, and "wrong his brother" refers to harming the brother. Alternate translation: "do what God had forbidden and wrong his brother”

the Lord is an avenger

"the Lord will punish the one who transgressed and will defend the one who was wronged"

forewarned you and testified

"told you beforehand and strongly warned against"