'Doing' in the Bible

We have confidence in the Lord concerning you, that you are doing and will continue to do the things [which] we command.

Indeed, we hear that some among you are leading an undisciplined and inappropriate life, doing no work at all, but acting like busybodies [meddling in other people’s business].

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].