'Working' in the Bible

What cause have I for fear in the days of evil, when the evil-doing of those who are working for my downfall is round about me?

Against you, you only, have I done wrong, working that which is evil in your eyes; so that your words may be seen to be right, and you may be clear when you are judging.

For from the past God is my King, working salvation in the earth.

I have done what is good and right: you will not give me into the hands of those who are working against me.