'Work' in the Bible

And as you saw the feet and toes, part of potter's work and part of iron, there will be a division in the kingdom; but there will be some of the strength of iron in it, because you saw the iron mixed with the potter's earth.

Then this Daniel did his work better than the chief rulers and the captains, because there was a special spirit in him; and it was the king's purpose to put him over all the kingdom.

In the third year of Cyrus, king of Persia, a secret was unfolded to Daniel, whose name was Belteshazzar; and the thing was true, even a hard work: and he had knowledge of it, and the vision was clear to him.