In the story about the unjust judge, Jesus did not say that our Father is unjust, nor did He tell us to badger God until we wear Him out and He grants our requests just to get rid of us.  Jesus was contrasting God's willingness to answer our prayers with the unjust judge's unwillingness to grant the woman's request.

Our God is a just Judge and He will avenge His elect speedily, but also we have Jesus as our Advocate or Attorney.  He is always making intercession for us.  Our enemy is always accusing us and misrepresenting God to us. This can cause us to give up and not even plead our case with God because we doubt He will answer.

It is important for you to know that Jesus declared that our Father is not an unjust Judge that we have to pressure into doing what is right.  Satan has deceived us into thinking God is unwilling to answer our prayers, and Jesus countered that deception with this parable.  He encouraged us to pray and petition God in the knowledge that He loves us and desires to bless us and grant our requests.

This widow's actions were commendable.  She knew what was rightfully hers, and she refused to take no for an answer.  If you can be that confident and determined when dealing with unjust people, you can be much more confident when dealimg with your faithful Father.  You can trust Him to always come through for you today!