Where in bible is story of woman that came to the king and ask for something over and over till she wore the king down and he granted her her request..?

The story you're referring to is found in Luke 18:1-8, often called the Parable of the Persistent Widow. In this parable, Jesus tells of a widow who repeatedly comes to an unjust judge, asking for justice against her adversary. Despite the judge's initial reluctance, her persistence eventually leads him to grant her request, illustrating the importance of perseverance in prayer.