'Oppression' in the Bible

If that person has sinned and has been found guilty, then he is to return the stolen thing that he took or obtained by oppression, or the security that had been entrusted to him, or the lost thing that he had found,

You shall not rule over him with harshness (severity, oppression), but you are to fear your God [with profound reverence].

You may even bequeath them as an inheritance to your children after you, to receive as a possession; you can use them as permanent slaves. But in respect to your fellow countrymen, the children of Israel, you shall not rule over one another with harshness (severity, oppression).

Like a man hired year by year he shall deal with him; he shall not rule over him with harshness in your sight.