16:1 Now Sarai, 1 Abram’s wife, had not given birth to any children, 2 but she had an Egyptian servant 3 named Hagar. 4 16:2 So Sarai said to Abram, “Since 5 the Lord has prevented me from having children, have sexual relations with 6 my servant. Perhaps I can have a family by her.” 7 Abram did what 8 Sarai told him.
25:21 Isaac prayed to 9 the Lord on behalf of his wife because she was childless. The Lord answered his prayer, and his wife Rebekah became pregnant.
29:31 When the Lord saw that Leah was unloved, 10 he enabled her to become pregnant 11 while Rachel remained childless.