'Oppression' in the Bible

then if he has sinned and is guilty, he shall restore what he took by robbery, or what he got by extortion, or the deposit which was entrusted to him, or the lost thing which he 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.