Thematic Bible: Is sterile; gives her handmaiden, hagar, to abraham as a concubine

Now Sarai, Abram's wife, had not given birth to any children, but she had an Egyptian servant named Hagar. So Sarai said to Abram, "Since the Lord has prevented me from having children, have sexual relations with my servant. Perhaps I can have a family by her." Abram did what Sarai told him. So after Abram had lived in Canaan for ten years, Sarai, Abram's wife, gave Hagar, her Egyptian servant, to her husband to be his wife.