Meaning one oughtn't to say things without giving chapter and verse?

On the other hand, I'm not prepared to give chapter and verse.

He'll give you chapter and verse if you ask him.

She gave him chapter and verse, but not about the events after midnight.

Since 2002, companies have had to give chapter and verse on how they pay their executives.

You need to talk to the control room, they can give you chapter and verse.

C'mon, you've got to give us chapter and verse on that one.

Tash gave Tate chapter and verse of everything they were working on.

"Of course, I was quite confident that you'd be able to give me chapter and verse on him."