Genesis 29:29 is the parallel act — Laban also gives Bilhah to Rachel, mirroring the giving of Zilpah to Leah described just above.

Genesis 30:9-12 shows Leah giving Zilpah to Jacob, where Zilpah bears Gad and Asher — fulfilling the role Laban set up when he gave her to Leah here.

Genesis 46:18 lists the descendants of Zilpah — the sons and grandsons she bore to Jacob, showing the legacy of the handmaid Laban gave to Leah.