I answered part of this question yesterday concerning Atticus's fearless, heroic nature. Please follow the link below for the answer.
HELPFUL. Atticus smooths things over with Scout when she wants to quit school following her first day with Miss Caroline. He promises that things will go on as usual when it comes to their nightly reading, which Miss Caroline has requested to cease completely.
"... If you'll concede the necessity of going to school, we'll go on reading every night just as we have. Is it a bargain?"
(Chapter 3, page 31)
DETERMINATION. At no time in the novel is determination more strongly displayed than during Atticus' final summation to the all-white jury when he pleads that they disregard Tom Robinson's race and
"... review without passion the evidence you have heard, come to a decision, and restore this defendant to his family. In the name of God do your duty... In the name of God, believe him.
(Chapter 20, pages 205-206)
what can Ewell do to harm me
What works well for me, when needing to read something carefully and critically, is usually to have pencil in hand as I read. Post it notes, also, are pretty handy things in order to jot down scenes that seem important in the book. Your key words here are courageous, determined, helpful; it might be helpful to think back to particular scenes in the book where Atticus is this; courageous, for example; when he stands and prevents the townspeople from mobbing the jail? Then, flip back through the book and look specifically for quotes that illustrate that.