What does Genesis 30:11 mean?

After bearing four sons for Jacob, Leah stopped getting pregnant (Genesis 29:34-35). This is a problem for Leah, since both she and Rachel see their fertility as part of a competition for Jacob's affection (Genesis 30:8). Rachel responded to her own personal barrenness by using her servant as a mother-by-proxy. Taking this approach, Rachel—through Bilhah—obtained two sons. Leah, not to be outdone, follow suit. In order to continue having children, she followed her sister's example and gave her personal maid servant, Zilpah, to her husband as another wife. As was the case with Rachel, Leah would claim any resulting children as her own.

Now Jacob's seventh son has been born, this time to Zilpah. Previously, Leah had named her sons in recognition of God's provision or in worship of the Lord. This time, though, she names her son Gad because of the good fortune she has had, and "good luck" or "luck has come" is the literal meaning of this word in Hebrew. According to some scholars, Gad may also have been a form of the name of a god worshiped locally around this time, though this is a minority view. Worship of household gods is still a part of the extended family's practice at this time (Genesis 31:32).