'Service' in the Bible

and his substance is seven thousand sheep, and three thousand camels, and five hundred pairs of oxen, and five hundred she-asses, and a service very abundant; and that man is greater than any of the sons of the east.

"Does not humanity have hard service on earth? Are not their days also like the days of a hired man?

If a human being dies, will he live again? I will endure the entire time of my assigned service, until I am changed.