Genesis 30:3-8

Rachel said, “Here’s my maid Bilhah. Sleep with her. Let her substitute for me so I can have a child through her and build a family.” So she gave him her maid Bilhah for a wife and Jacob slept with her. Bilhah became pregnant and gave Jacob a son. Rachel said, “God took my side and vindicated me. He listened to me and gave me a son.” She named him Dan (Vindication). Rachel’s maid Bilhah became pregnant again and gave Jacob a second son. Rachel said, “I’ve been in an all-out fight with my sister—and I’ve won.” So she named him Naphtali (Fight).