The Parable of the Persistent Widow and Unjust Judge is found in the book of Luke, chapter 18 verses 1-8.

In the parable of the persistent widow, Jesus teaches his disciples that justice has its source in God. Though many barriers exist in the world that prevent us from receiving or experiencing justice, we get justice by petitioning the one who brings about justice on the earth...

6 And the Lord(C) said, “Listen to what the unjust judge says. 7 And will not God bring about justice for his chosen ones, who cry out(D) to him day and night? Will he keep putting them off? 8 I tell you, he will see that they get justice, and quickly. However, when the Son of Man(E) comes,(F) will he find faith on the earth?”