'Working' in the Bible

whose coming is according to the working of Satan in all power and signs and wonders of falsehood,

And for this reason God sends to them a working of error, that they should believe what is false,

nor have we eaten bread from any one without cost; but in toil and hardship working night and day not to be chargeable to any one of you:

For we hear that there are some walking among you disorderly, not working at all, but busybodies.

Now such we enjoin and exhort in the Lord Jesus Christ, that working quietly they eat their own bread.