One immediate example that comes to mind is described in Atticus' conversation with his brother, Jack, in Chapter 9. Atticus and Jack have a frank talk about Jack's lack of understanding in dealing with children. Atticus then discusses the upcoming trial of Tom Robinson and how he knows that his family will suffer from his defense of the black man in the rape of the white Mayella Ewell. He hopes that his children will not be affected permanently, and that they will trust his judgment and not pay attention to gossip and rumors.
"You know what's going to happen as well as I do, Jack, and I hope and pray I can get Jem and Scout through it without bitterness, and most of all without catching Maycomb's usual disease... I just hope that Jem and Scout come to me for their answers instead of listening to the town. I hope they trust me enough..."