Answer:
This is challenging the church leaders to take action against racial injustice because it is trying to convince them what they are doing is wrong. Martin states "Injustice must likewise be exposed, with all of the tension its exposing creates to the light of human conscience and the air of national opionion before it can be cured." This shows that he is trying to push justice everywhere by calling out the mistakes of others and trying to help them dix their injustice.
Explanation: