Work is just doing your fair share of what is necessary to survive in a broken world.
In the beginning survival was easy. Then humans broke the world by letting sin into it. Now it takes a lot more effort to survive here. It's kind of like a car if you flattened all the tires - it would still roll, but it would take a lot more power and the ride would be a lot more bumpy.
Some people try to cheat by stealing what others have, or lying to the government to get a free ride, or by other methods. Some are physically or mentally broken and not able to put out the effort needed to survive, so (ideally) the rest of us share the burden of supporting them.
But if you are honest, and if you are able, you will get up and go to work. It's only fair.