
Luke 18:1-8 is the parable of the Persistent Widow. She keeps bothering the judge in order to get justice. He actually fears that she will wear him out, and so gives in to her request!
Jesus seems to be saying, "talk to God so much, that you think you'll wear Him out." You can't wear God out, by the way. Talk to Him with childlike abandon. Tell him about the details of your day. Ask Him to meet your needs and your wants. According to verse 8, our pleas demonstrate our faith. Makes sense. My child keeps coming to me because I meet his needs. God wants to do the same for us. Wear Him out!