Genesis 16:1

The Birth of Ishmael

16:1 Now Sarai, Abram’s wife, had not given birth to any children, but she had an Egyptian servant named Hagar.

Genesis 24:59

24:59 So they sent their sister Rebekah on her way, accompanied by her female attendant, with Abraham’s servant and his men.

Genesis 30:9-12

30:9 When Leah saw that she had stopped having children, she gave her servant Zilpah to Jacob as a wife. 30:10 Soon Leah’s servant Zilpah gave Jacob a son. 30:11 Leah said, “How fortunate!” So she named him Gad.

30:12 Then Leah’s servant Zilpah gave Jacob another son.

Genesis 46:18

46:18 These were the sons of Zilpah, whom Laban gave to Leah his daughter. She bore these to Jacob, sixteen in all.