Exodus 1:13 The Egyptians ruthlessly made the children of Israel serve, (WEB NIV)
Exodus 1:14 and they made their lives bitter with hard service, in mortar and in brick, and in all manner of service in the field, all their service, in which they ruthlessly made them serve. (WEB NIV)
Leviticus 25:43 You shall not rule over him with harshness, but shall fear your God. (See NIV)
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. (See NIV)
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. (See NIV)
Judges 15:8 He struck them hip and thigh with a great slaughter: and he went down and lived in the cleft of the rock of Etam. (See NAS)
Job 30:21 You have turned to be cruel to me. With the might of your hand you persecute me. (See NIV)
Isaiah 30:14 And he will let it be broken as a potter's vessel is broken: it will be smashed to bits without mercy; so that there will not be a bit in which one may take fire from the fireplace, or water from the spring. (See NAS RSV)