Harry Potter and the Deathly Hallows
"No," Harry said aloud, and they all looked at him, surprised. The firewhiskey seemed to have amplified his voice. "I mean… if somebody made a mistake," Harry went on, "and let something slip, I know they didn't mean to do it. It's not their fault," he repeated, again a little louder than he would usually have spoken. "We've got to trust each other. I trust all of you, I don't think anyone in this room would ever sell me to Voldemort." (5.119)
Lupin was wearing an odd expression as he looked at Harry. It was close to pitying.
"You think I'm a fool?" demanded Harry.
"No, I think you're like James," said Lupin, "who would have regarded it as the height of dishonor to mistrust his friends."
You gave Ron the Deluminator. You understood him… You gave him a way back…
And you understood Wormtail, too… You knew there was a bit of regret there, somewhere…
And if you knew them… What did you know about me, Dumbledore?
Am I meant to know, but not to seek? Did you know how hard I'd find that? Is that why you made it this difficult? So I'd have time to work that out? (24.44-47)