What one passage from any book you have read has always stuck with you and why?

I was raised in the Pentecostal faith and one of the constant books in my childhood/youth was the Bible. Me, I was an Old Testament reader – the stories, the violence, the moral dilemmas! I think this is partly why I have grown to love thrillers and crime writing so much. Though few beat the Bible. The passage about Abraham and Isaac has always stuck with me, for what can be crueller than tell a subject you can love but one.