Exodus 1:13 And the Egyptians made the children of Israel serve with harshness; (DBY)
Exodus 1:14 and they embittered their life with hard labour in clay and bricks, and in all manner of labour in the field: all their labour with which they made them serve was with harshness. (DBY)
Leviticus 25:43 You shall not rule over him with harshness, but shall fear your God. (WEB RSV)
Leviticus 25:46 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. (WEB RSV)
Leviticus 25:53 As a servant hired year by year shall he be with him: he shall not rule with harshness over him in your sight. (WEB RSV)