In chapter 24, Scout attends her aunt's missionary circle and is forced to interact with her prejudiced neighbors as they discuss local events and the current atmosphere throughout the town following the Tom Robinson trial. As Mrs. Merriweather discusses her racist views and drones on, Scout begins to reflect on what Calpurnia was telling Miss Rachel's cook the other day about Tom Robinson. According to Calpurnia, there wasn't anything Atticus could do to make the situation any better for Tom, who had been sent to Enfield Prison Farm. Scout then overhears Calpurnia tell Miss Rachel's cook that the last words Tom Robinson said to Atticus Finch were as follows:

"Good-bye, Mr. Finch, there ain't nothin' you can do now, so there ain’t no use tryin'" (Lee, 238).

Tom Robinson's last words depict his state of mind and perception of Maycomb's corrupt justice system. After becoming a victim of racial injustice by being wrongly convicted of assaulting and raping Mayella Ewell, Tom Robinson loses faith and gives up any hope of winning his freedom, which prompts his escape attempt.

This occurred on the day when they  took Tom to the prison camp. Tom's last words to Atticus were "Good-bye Mr. Finch, there ain't nothing you can do now, so there ain't no use tryin'" (ch 24). Tom had given up all hope in finding justice.

Atticus offered him no false assurances of making it right, because Atticus did not want to give him false hope.