Luke 17:7-10 - Unworthy Servants
7 Which of you, if he had a servant ploughing, or tending the sheep, would say to him, when he came in from the fields, 'Come at once and take your place at table,' 8 Instead of saying 'Prepare my dinner, and then make yourself ready and wait on me while I am eating and drinking, and after that you shall eat and drink yourself'? 9 Does he feel grateful to his servant for doing what he is told? 10 And so with you--when you have done all that you have been told, still say 'We are but useless servants; we have done no more than we ought to have done.'"