dealing out [full and complete] vengeance to those who do not [seek to] know God and to those who ignore and refuse to obey the gospel of our Lord Jesus [by choosing not to respond to Him].

so that the name of our Lord Jesus will be glorified in you [by what you do], and you in Him, according to the [precious] grace of our God and the Lord Jesus Christ.

And as for [the rest of] you, believers, do not grow tired or lose heart in doing good [but continue doing what is right without weakening].