'Harshness' in the Bible

You shall not rule over him with harshness, but shall fear your God.

You may make them an inheritance for your children after you, to hold for a possession; of them may you take your slaves forever: but over your brothers the children of Israel you shall not rule, one over another, with harshness.

As a servant hired year by year shall he be with him: he shall not rule with harshness over him in your sight.