Luke 7:8

7:8 For I too am a man set under authority, with soldiers under me. I say to this one, ‘Go,’ and he goes, and to another, ‘Come,’ and he comes, and to my slave, ‘Do this,’ and he does it.”

Luke 12:45-46

12:45 But if that slave should say to himself, ‘My master is delayed in returning,’ and he begins to beat the other slaves, both men and women, and to eat, drink, and get drunk, 12:46 then the master of that slave will come on a day when he does not expect him and at an hour he does not foresee, and will cut him in two, and assign him a place with the unfaithful.

Luke 15:29

15:29 but he answered his father, ‘Look! These many years I have worked like a slave for you, and I never disobeyed your commands. Yet you never gave me even a goat so that I could celebrate with my friends!

Luke 17:7

17:7 “Would any one of you say to your slave who comes in from the field after plowing or shepherding sheep, ‘Come at once and sit down for a meal’?