Bilhah (1) bil'-ha (person) (bilhah; Balla): A slave girl whom Laban gave to Rachel (Genesis 29:29), and whom the latter gave to Jacob as a concubine (Genesis 30:3, Genesis 30:4); the mother of Da and Naphtali (Genesis 30:4, Genesis 30:7, Genesis 35:25, Genesis 46:25, 1 Chronicles 7:13); guilty of incest with Reuben (Genesis 35:22).