Genesis 29:24
And Laban gave her Zilpah, his handmaid, unto Leah his daughter. as handmaid.
Genesis 30:9-12
Then saw Leah, that she had left off bearing, - so she took Zilpah, her handmaid, and gave her to Jacob to wife.
Genesis 16:1
But Sarai, Abram's wife, had borne him no children, - she had, however, an Egyptian handmaid, whose name was Hagar.
Genesis 24:59
So they let go Rebekah their sister, and her nurse, and Abraham's servant and his men.
Genesis 46:18
These, are the sons of Zilpah, whom Laban gave to Leah his daughter, - so she bare these to Jacob, - sixteen souls.
Treasury of Scripture Knowledge
Summary
                            And Laban gave unto his daughter Leah Zilpah his maid for an handmaid.                        
                    Bible References
Zilpah
                                        Genesis 16:1                                        
                                                                                                                                But Sarai, Abram's wife, had borne him no children, - she had, however, an Egyptian handmaid, whose name was Hagar.
                                    
                                        Genesis 24:59                                        
                                                                                                                                So they let go Rebekah their sister, and her nurse, and Abraham's servant and his men.
                                    
                                        Genesis 30:9                                        
                                                                                                                                Then saw Leah, that she had left off bearing, - so she took Zilpah, her handmaid, and gave her to Jacob to wife.
                                    
                                        Genesis 46:18                                        
                                                            
                        These, are the sons of Zilpah, whom Laban gave to Leah his daughter, - so she bare these to Jacob, - sixteen souls.