I took the position from the start that I wanted my characters to be real. If there are more than 300 kids in the FAYZ obviously they will represent all races, all religions, all national origins, sexual preferences and philosophies. Astrid is a devout Catholic, Edilio a less involved Catholic, Brittney is an evangelical Christian, Duck is a Buddhist (although I don't know if I ever mentioned that,) Sanjit (from LIES) is a Hindu, and Sam is a sort of uninvolved Jew.
I have my own opinions but I work hard never to make the books about my opinions. I am pretty sure I'm not the final word on God, morality or anything else. It's not my job to tell readers what to believe, it's my job to entertain readers. You guys give me $18 or whatever for the book, and I don't think you do that so I can lecture you. You have parents, friends, pastors, teachers and so on to lecture you. You want to get serious about the big issue? Read Aristotle, the Bible, the Koran, Kant, Nietzsche, Aquinas, Kierkegaard, Russell. I hope you will read those guys.
Me? I stick to telling stories.
Of course in the process of me telling stories of course I am going to raise questions. About good and evil, right and wrong, all of that. But I try hard to raise those questions and let you answer them. That's my own little moral code as it relates to writing for yound adults. I absolutely hope to challenge you. And then I trust you to figure out the answers.
In later books you'll see believers doubt and non-believers seek. The one thing I'd ask is this: know that I'm not pushing an agenda, I'm just letting the characters work things out.