The parable of the Persistent Widow and the Unjust Judge is not so much about persistent prayer. I think it is a parable about pursuing justice – pursuing justice persistently. Echoing the words of the prophet Jeremiah, when we seek the welfare of the city are we willing to make the commitment to pursue justice with great persistence?
Jeremiah 29: 1,4-7
These are the words of the letter that the prophet Jeremiah sent from Jerusalem to the remaining elders among the exiles, and to the priests, the prophets, and all the people, whom Nebuchadnezzar had taken into exile from Jerusalem to Babylon.
Thus says the Lord of hosts, the God of Israel, to all the exiles whom I have sent into exile from Jerusalem to Babylon: Build houses and live in them; plant gardens and eat what they produce. Take wives and have sons and daughters; take wives for your sons, and give your daughters in marriage, that they may bear sons and daughters; multiply there, and do not decrease. But seek the welfare of the city where I have sent you into exile, and pray to the Lord on its behalf, for in its welfare you will find your welfare.