Leviticus 25:53

And he will be with him as a servant working for payment year by year; his master is not to be cruel to him before your eyes.

Leviticus 25:43

Do not be a hard master to him, but have the fear of God before you.

Leviticus 25:46

And they will be your children's heritage after you, to keep as their property; they will be your servants for ever; but you may not be hard masters to your countrymen, the children of Israel.

Treasury of Scripture Knowledge did not add

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain