Genesis 16:1-2

1Now 1Sarai, Abram’s wife had borne him no children, and she had 2an Egyptian maid whose name was Hagar.

2So Sarai said to Abram, “Now behold, the Lord has prevented me from bearing children. 3Please go in to my maid; perhaps I will 4obtain children through her.” And Abram listened to the voice of Sarai.