"I used to listen to so much doo-wop, and I've talked a lot about gospel music, but I realised a lot of that language came from doo-wop music. You know, "I Asked the Lord Above," "Heaven Sent Me an Angel." That's rock-'n-roll, and that's where a lot of this language is coming from. Also, I've said before that as soon as you start having a conversation with Jesus in a song you know you're dealing with issues of morality and how fragile it is to be human. It's a shortcut to putting those ideas across."