What does the phrase "Let this cup pass from you" mean in Harper Lee's To Kill a Mockingbird?

Uncle
Jack is alluding to the Biblical account of Jesuss prayers before his crucifixion when he asksif
he is going to allow this cup pass from him in chapter nine. In the Gospel of Matthew, Jesus
prays for God to allow this cup to pass from him before he is crucified. Jesus is essentially
asking God to prevent him from being crucified and save him from suffering a brutal death. The
figurative cup Jesus is speaking about symbolically represents an arduous, painful task that is
necessary to complete for the well-being of others. By figuratively accepting the cup, Jesus is
willing to sacrifice his life for the salvation of humanity.

Uncle Jack
recognizes that Atticus will suffer at the hands of his racist neighbors for defending a black
man and Atticus's decision to represent Tom Robinson will cause him a significant amount of
stress. Similar to the way Jesus petitioned God to intervene and save him from his harrowing
experience, Atticus also has the opportunity to step away from...