Then she said, “Here is my maidservant Bilhah. Sleep with her, that she may bear children for me, so that through her I too can build a family.”
Jewish Publication Society of America Version (JPS1917) - Genesis 30:3 >And she said: 'Behold my maid Bilhah, go in unto her; that she may bear upon my knees, and I also may be builded up through her.'