לא תעבד בו עבדת עבד
The eved Ivri, Jewish bondsman/slave, is not a slave in the generally accepted sense of the word. He is an indentured servant, who, for a specific period of time, neither is free to do as he wants, nor to resign his employment. Nonetheless, their masters must treat them with such delicacy and consideration that Chazal (Kiddushin 20a) say, “One who purchases a (Jewish) slave for himself buys himself a master.” The master is forbidden to assign him to perform degrading work that would be relegated only to a slave. He is to be assigned skilled, dignified labor like hired help….