'Doing' in the Bible

Keeping faith, and being conscious of well-doing; for some, by not doing these things, have gone wrong in relation to the faith:

Give attention to yourself and your teaching. Go on in these things; for in doing so you will get salvation for yourself and for those who give hearing to you.

And they get into the way of doing no work, going about from house to house; and not only doing no work, but talking foolishly, being over-interested in the business of others, saying things which they have no right to say.