Cross reference
1 Samuel 1:6
6 And the other wife did everything possible to make her unhappy, because the Lord had not let her have children;
Leviticus 18:18
18 And you may not take as wife a woman and at the same time her sister, to be in competition with her in her life-time.
Job 6:14
14 He whose heart is shut against his friend has given up the fear of the Ruler of all.
Job 24:21
21 He is not kind to the widow, and he has no pity for her child.