'Doing' in the Bible

to those who by perseverance in doing good seek for glory and honor and immortality, eternal life;

For what I am doing, I do not understand; for I am not practicing what I would like to do, but I am doing the very thing I hate.

So now, no longer am I the one doing it, but sin which dwells in me.

For I know that nothing good dwells in me, that is, in my flesh; for the willing is present in me, but the doing of the good is not.

But if I am doing the very thing I do not want, I am no longer the one doing it, but sin which dwells in me.

“But if your enemy is hungry, feed him, and if he is thirsty, give him a drink; for in so doing you will heap burning coals on his head.”