Genesis 16:1-3

1Now Sarai, Abram’s wife, had not borne him children. But she had an Egyptian slave-girl—her name was Hagar.

2So Sarai said to Abram, “Look now, Adonai has prevented me from having children. Go, please, to my slave-girl. Perhaps I’ll get a son by her.” Abram listened to Sarai’s voice.

3So Sarai, Abram’s wife, took her slave-girl Hagar the Egyptian—after Abram had lived ten years in the land of Canaan—and gave her to Abram her husband to be his wife.