Related Clues:

• First gospel
• Mark follows him for another book
• Terry Pratchett told it, as did Zola, some of the time
• Claim to divinity taken up as church teaching
• Go mad, struggling in teaching
• Blind faith required, as one with puppies?
• Closely follow parent in creed
• Candour
• Support part of the church backing the Gospel once
• Opinion Zeus, say, upheld to a degree
• Inflexible principles
• Harry's mum to give opinion
• Support part of church that's rejected gospel
• Trouble with degree in principle
• Set of beliefs, the most powerful being rejected by graduate