'Harshness' in the Bible

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.