“So you also, when you have done all that you were ordered to do, say, ‘We are worthless slaves; we have done only what we ought to have done!’” (Luke 17:10).
In his book, “Jesus, the Master Psychologist,” Dr. Ray Guarendi comments on the above passage: “Jesus never questions the infinite value of a person … [Jesus’] counsel: When you do what is expected of you, do not expect approval.” Guarandi continues, “Don’t seek praise when acting praiseworthy. [A worthless slave] is not a worthless human being … Being a worthless servant is the path to being a worthy disciple.”
In other words, we are infinitely valuable, but it is God, not ourselves, Who provides the value. Whatever we do to serve Him is not to our credit, but is only what we would be expected to do, because He is worthy of all service.